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closed
Cannot Build Android APK

Please help i cannot build into apk always error in:
Error: The specified language version is too high. The highest supported language version is 3.1.

Asked 3 months ago on February 4, 2025 5:30 AM Comments 10 times


  1. Generic placeholder image

    kevin replied

    Hello

    Sorry for the inconvenience.

    For the youtube video being close when the orientation is set to landscape issue.

    Please download and replace the YoutubePlayerScreen.dart file from the below link and replace it to the below plath:

    File Link : https://we.tl/t-1nUnyLQx35

    File Path : lib\screen\YoutubePlayerScreen.dart

    Thanks & Regards
    - Kevin
  2. Generic placeholder image

    kevin replied

    Hello

    For the Built apk you have to Add the below mention code in the android\build.gradle as show in the below image, after adding the code do flutter clean and try to build again.

    subprojects {
    afterEvaluate { project ->
    if (project.plugins.hasPlugin("com.android.application") ||
    project.plugins.hasPlugin("com.android.library")) {
    project.android {
    compileSdkVersion 34
    buildToolsVersion "34.0.0"
    }
    }
    }
    }

     

    We will check the issue with Youtube video and get back to you

     
    Thanks & Regards
    - Kevin

    ATTACHED FILES

  3. Generic placeholder image

    Arda Surya replied

    ok this apps have been running and can built into apk

    but when i payed the video from youtube when i change the orientation the video closed. please help

     

  4. Generic placeholder image

    kevin replied

    Hello

    Sorry for the inconvenience, please use Flutter version 3.24.1.

    If the issue still occur please let us know.

    Thanks & Regards
    - Kevin
  5. Generic placeholder image

    kevin replied

    Okay we will check the issue and get back to you

    Thanks & Regards
    - Kevin
  6. Generic placeholder image

    Arda Surya replied

    still error but for now there is different error

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/youtube_player_flutter-9.0.4/lib/src/widgets/youtube_player_builder.dart:78:9: Error: No named parameter with the name 'onPopInvokedWithResult'.

            onPopInvokedWithResult: (didPop, _) {

            ^^^^^^^^^^^^^^^^^^^^^^

    /E:/flutter/packages/flutter/lib/src/widgets/pop_scope.dart:55:9: Context: Found this candidate, but the arguments don't match.

      const PopScope({

            ^^^^^^^^

    lib/screen/WebViewScreen.dart:98:58: Error: The argument type 'Uri' can't be assigned to the parameter type 'WebUri?'.

     - 'Uri' is from 'dart:core'.

     - 'WebUri' is from 'package:flutter_inappwebview_platform_interface/src/web_uri.dart' ('/C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/flutter_inappwebview_platform_interface-1.0.10/lib/src/web_uri.dart').

                      initialUrlRequest: URLRequest(url: Uri.parse(widget.mInitialUrl == null ? 'https://www.google.com' : widget.mInitialUrl!)),

                                                             ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/better_player-0.0.83/lib/src/configuration/better_player_controls_configuration.dart:243:34: Error: The getter 'bodyText1' isn't defined for the class 'TextTheme'.

     - 'TextTheme' is from 'package:flutter/src/material/text_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/text_theme.dart').

    Try correcting the name to the name of an existing getter, or defining a getter or field named 'bodyText1'.

          textColor: theme.textTheme.bodyText1?.color ?? Colors.white,

                                     ^^^^^^^^^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/better_player-0.0.83/lib/src/configuration/better_player_controls_configuration.dart:244:35: Error: The getter 'button' isn't defined for the class 'TextTheme'.

     - 'TextTheme' is from 'package:flutter/src/material/text_theme.dart' ('/E:/flutter/packages/flutter/lib/src/material/text_theme.dart').

    Try correcting the name to the name of an existing getter, or defining a getter or field named 'button'.

          iconsColor: theme.textTheme.button?.color ?? Colors.white,

                                      ^^^^^^

     

    Target kernel_snapshot failed: Exception

  7. Generic placeholder image

    Arda Surya replied

    Ok i'll try

  8. Generic placeholder image

    kevin replied

    Please use Flutter version 3.22.3 

    If the issue still occur please let us know.

    Thanks & Regards
    - Kevin
  9. Generic placeholder image

    Arda Surya replied

    Running Gradle task 'assembleRelease'...                        

    Note: C:\Users\Administrator\AppData\Local\Pub\Cache\hosted\pub.dev\store_redirect-2.0.3\android\src\main\java\com\danieldallos\storeredirect\StoreRedirectPlugin.java uses or overrides a deprecated API.

    Note: Recompile with -Xlint:deprecation for details.

    warning: unknown enum constant Mode.LOCAL

      reason: class file for com.facebook.infer.annotation.Nullsafe$Mode not found

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    warning: unknown enum constant Mode.LOCAL

    13 warnings

    Note: Some input files use or override a deprecated API.

    Note: Recompile with -Xlint:deprecation for details.

    Note: Some input files use unchecked or unsafe operations.

    Note: Recompile with -Xlint:unchecked for details.

    Note: Some input files use or override a deprecated API.

    Note: Recompile with -Xlint:deprecation for details.

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/win32.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/bstr.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // A wrapper for BSTR string types.

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/callbacks.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/constants.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/constants_metadata.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/constants_nodoc.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/exceptions.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/guid.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // guid.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/inline.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/macros.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/propertykey.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // propertykey.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/structs.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/types.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Simple data types that are commonly used as aliases for C/C++ primitive data

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/utils.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/variant.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/winmd_constants.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/winrt_helpers.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/dialogs.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/int_to_hexstring.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/list_to_blob.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/set_ansi.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    import 'dart:ffi';

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/set_string.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/set_string_array.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    import 'dart:ffi';

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/extensions/unpack_utf16.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/advapi32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/bluetoothapis.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/bthprops.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/comctl32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/comdlg32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/crypt32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/dbghelp.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/dwmapi.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/dxva2.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/gdi32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/iphlpapi.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/kernel32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/magnification.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/netapi32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/ntdll.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/ole32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/oleaut32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/powrprof.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/rometadata.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/scarddlg.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/setupapi.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/shell32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/shlwapi.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/user32.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/uxtheme.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/version.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/winmm.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/winscard.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/winspool.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/wlanapi.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/xinput1_4.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_apiquery_l2_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_comm_l1_1_1.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_comm_l1_1_2.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_handle_l1_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_sysinfo_l1_2_3.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_winrt_l1_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_winrt_error_l1_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_core_winrt_string_l1_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_ro_typeresolution_l1_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_ro_typeresolution_l1_1_1.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_shcore_scaling_l1_1_1.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/win32/api_ms_win_wsl_api_l1_1_0.g.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/combase.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // Copyright (c) 2020, Dart | Windows.  Please see the AUTHORS file

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iagileobject.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iagileobject.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iapplicationactivationmanager.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iapplicationactivationmanager.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxfactory.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxfactory.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxfile.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxfile.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxfilesenumerator.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxfilesenumerator.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestapplication.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestapplication.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestapplicationsenumerator.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestapplicationsenumerator.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestospackagedependency.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestospackagedependency.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestpackagedependenciesenumerator.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestpackagedependenciesenumerator.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestpackagedependency.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestpackagedependency.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestpackageid.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestpackageid.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestproperties.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestproperties.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader3.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader3.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader4.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader4.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader5.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader5.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader6.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader6.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxmanifestreader7.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxmanifestreader7.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iappxpackagereader.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iappxpackagereader.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudiocaptureclient.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudiocaptureclient.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclient.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclient.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclient2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclient2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclient3.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclient3.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclientduckingcontrol.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclientduckingcontrol.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclock.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclock.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclock2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclock2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudioclockadjustment.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudioclockadjustment.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudiorenderclient.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudiorenderclient.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudiosessioncontrol.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudiosessioncontrol.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudiosessionmanager.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudiosessionmanager.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iaudiostreamvolume.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iaudiostreamvolume.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ibindctx.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ibindctx.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ichannelaudiovolume.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ichannelaudiovolume.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iclassfactory.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iclassfactory.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iconnectionpoint.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iconnectionpoint.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iconnectionpointcontainer.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iconnectionpointcontainer.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/idesktopwallpaper.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // idesktopwallpaper.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/idispatch.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // idispatch.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumidlist.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumidlist.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienummoniker.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienummoniker.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumnetworkconnections.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumnetworkconnections.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumnetworks.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumnetworks.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumresources.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumresources.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumspellingerror.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumspellingerror.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumstring.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumstring.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumvariant.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumvariant.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ienumwbemclassobject.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ienumwbemclassobject.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ierrorinfo.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ierrorinfo.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ifiledialog.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ifiledialog.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ifiledialog2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ifiledialog2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ifiledialogcustomize.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ifiledialogcustomize.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ifileisinuse.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ifileisinuse.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ifileopendialog.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ifileopendialog.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ifilesavedialog.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ifilesavedialog.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iinitializewithwindow.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iinitializewithwindow.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iinspectable.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iinspectable.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iknownfolder.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iknownfolder.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iknownfoldermanager.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iknownfoldermanager.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadataassemblyimport.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadataassemblyimport.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadatadispenser.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadatadispenser.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadatadispenserex.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadatadispenserex.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadataimport.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadataimport.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadataimport2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadataimport2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadatatables.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadatatables.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imetadatatables2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imetadatatables2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/immdevice.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // immdevice.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/immdevicecollection.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // immdevicecollection.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/immdeviceenumerator.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // immdeviceenumerator.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/immendpoint.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // immendpoint.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/immnotificationclient.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // immnotificationclient.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imodalwindow.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imodalwindow.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/imoniker.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // imoniker.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/inetwork.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // inetwork.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/inetworkconnection.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // inetworkconnection.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/inetworklistmanager.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // inetworklistmanager.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/inetworklistmanagerevents.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // inetworklistmanagerevents.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ipersist.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ipersist.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ipersistfile.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ipersistfile.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ipersistmemory.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ipersistmemory.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ipersiststream.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ipersiststream.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ipropertystore.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ipropertystore.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iprovideclassinfo.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iprovideclassinfo.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/irestrictederrorinfo.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // irestrictederrorinfo.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/irunningobjecttable.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // irunningobjecttable.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isensor.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isensor.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isensorcollection.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isensorcollection.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isensordatareport.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isensordatareport.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isensormanager.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isensormanager.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isequentialstream.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isequentialstream.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellfolder.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellfolder.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellitem.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellitem.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellitem2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellitem2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellitemarray.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellitemarray.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellitemfilter.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellitemfilter.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellitemimagefactory.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellitemimagefactory.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellitemresources.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellitemresources.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishelllink.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishelllink.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishelllinkdatalist.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishelllinkdatalist.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishelllinkdual.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishelllinkdual.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ishellservice.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ishellservice.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isimpleaudiovolume.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isimpleaudiovolume.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechaudioformat.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechaudioformat.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechbasestream.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechbasestream.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechobjecttoken.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechobjecttoken.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechobjecttokens.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechobjecttokens.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechvoice.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechvoice.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechvoicestatus.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechvoicestatus.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeechwaveformatex.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeechwaveformatex.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispellchecker.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispellchecker.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispellchecker2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispellchecker2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispellcheckerchangedeventhandler.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispellcheckerchangedeventhandler.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispellcheckerfactory.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispellcheckerfactory.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispellingerror.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispellingerror.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispeventsource.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispeventsource.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispnotifysource.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispnotifysource.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ispvoice.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ispvoice.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/istream.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // istream.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/isupporterrorinfo.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // isupporterrorinfo.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/itypeinfo.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // itypeinfo.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomation.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomation.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomation2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomation2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomation3.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomation3.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomation4.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomation4.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomation5.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomation5.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomation6.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomation6.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationandcondition.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationandcondition.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationannotationpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationannotationpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationboolcondition.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationboolcondition.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationcacherequest.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationcacherequest.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationcondition.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationcondition.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationcustomnavigationpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationcustomnavigationpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationdockpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationdockpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationdragpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationdragpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationdroptargetpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationdroptargetpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement3.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement3.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement4.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement4.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement5.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement5.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement6.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement6.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement7.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement7.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement8.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement8.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelement9.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelement9.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationelementarray.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationelementarray.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationexpandcollapsepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationexpandcollapsepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationgriditempattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationgriditempattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationgridpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationgridpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationinvokepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationinvokepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationitemcontainerpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationitemcontainerpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationlegacyiaccessiblepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationlegacyiaccessiblepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationmultipleviewpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationmultipleviewpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationnotcondition.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationnotcondition.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationobjectmodelpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationobjectmodelpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationorcondition.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationorcondition.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationpropertycondition.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationpropertycondition.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationproxyfactory.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationproxyfactory.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationproxyfactoryentry.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationproxyfactoryentry.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationproxyfactorymapping.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationproxyfactorymapping.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationrangevaluepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationrangevaluepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationscrollitempattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationscrollitempattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationscrollpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationscrollpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationselectionitempattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationselectionitempattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationselectionpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationselectionpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationselectionpattern2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationselectionpattern2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationspreadsheetitempattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationspreadsheetitempattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationspreadsheetpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationspreadsheetpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationstylespattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationstylespattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationsynchronizedinputpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationsynchronizedinputpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtableitempattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtableitempattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtablepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtablepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextchildpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextchildpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtexteditpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtexteditpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextpattern2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextpattern2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextrange.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextrange.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextrange2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextrange2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextrange3.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextrange3.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtextrangearray.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtextrangearray.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtogglepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtogglepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtransformpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtransformpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtransformpattern2.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtransformpattern2.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationtreewalker.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationtreewalker.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationvaluepattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationvaluepattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationvirtualizeditempattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationvirtualizeditempattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuiautomationwindowpattern.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuiautomationwindowpattern.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iunknown.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iunknown.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iuri.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iuri.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/ivirtualdesktopmanager.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // ivirtualdesktopmanager.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemclassobject.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemclassobject.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemconfigurerefresher.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemconfigurerefresher.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemcontext.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemcontext.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemhiperfenum.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemhiperfenum.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemlocator.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemlocator.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemobjectaccess.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemobjectaccess.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemrefresher.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemrefresher.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwbemservices.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwbemservices.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwebauthenticationcoremanagerinterop.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwebauthenticationcoremanagerinterop.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/win32-5.2.0/lib/src/com/iwinhttprequest.dart:1:1: Error: The specified language version is too high. The highest supported language version is 3.1.

    // iwinhttprequest.dart

    ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/google_fonts-6.2.0/lib/src/google_fonts_base.dart:69:8: Error: Type 'FontFeature' not found.

      List? fontFeatures,

           ^^^^^^^^^^^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/readmore-3.0.0/lib/readmore.dart:97:9: Error: Type 'TextScaler' not found.

      final TextScaler? textScaler;

            ^^^^^^^^^^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/google_fonts-6.2.0/lib/src/google_fonts_base.dart:69:8: Error: 'FontFeature' isn't a type.

      List? fontFeatures,

           ^^^^^^^^^^^

    lib/screen/BetterPlayerScreen.dart:118:58: Error: The argument type 'List' can't be assigned to the parameter type '(int, int)'.

     - 'List' is from 'dart:core'.

                                }).enterPipMode(aspectRatio: [16, 9], seamlessResize: true);

                                                             ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/youtube_player_flutter-9.0.4/lib/src/widgets/youtube_player_builder.dart:76:14: Error: The method 'PopScope' isn't defined for the class '_YoutubePlayerBuilderState'.

     - '_YoutubePlayerBuilderState' is from 'package:youtube_player_flutter/src/widgets/youtube_player_builder.dart' ('/C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/youtube_player_flutter-9.0.4/lib/src/widgets/youtube_player_builder.dart').

    Try correcting the name to the name of an existing method, or defining a method named 'PopScope'.

          child: PopScope(

                 ^^^^^^^^

    lib/screen/WebViewScreen.dart:98:58: Error: The argument type 'Uri' can't be assigned to the parameter type 'WebUri?'.

     - 'Uri' is from 'dart:core'.

     - 'WebUri' is from 'package:flutter_inappwebview_platform_interface/src/web_uri.dart' ('/C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/flutter_inappwebview_platform_interface-1.0.10/lib/src/web_uri.dart').

                      initialUrlRequest: URLRequest(url: Uri.parse(widget.mInitialUrl == null ? 'https://www.google.com' : widget.mInitialUrl!)),

                                                             ^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/readmore-3.0.0/lib/readmore.dart:97:9: Error: 'TextScaler' isn't a type.

      final TextScaler? textScaler;

            ^^^^^^^^^^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/readmore-3.0.0/lib/readmore.dart:187:56: Error: Member not found: 'MediaQuery.textScalerOf'.

        final textScaler = widget.textScaler ?? MediaQuery.textScalerOf(context);

                                                           ^^^^^^^^^^^^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/readmore-3.0.0/lib/readmore.dart:258:11: Error: No named parameter with the name 'textScaler'.

              textScaler: textScaler,

              ^^^^^^^^^^

    /E:/flutter/packages/flutter/lib/src/painting/text_painter.dart:489:3: Context: Found this candidate, but the arguments don't match.

      TextPainter({

      ^^^^^^^^^^^

    /C:/Users/Administrator/AppData/Local/Pub/Cache/hosted/pub.dev/readmore-3.0.0/lib/readmore.dart:356:11: Error: No named parameter with the name 'textScaler'.

              textScaler: textScaler,

              ^^^^^^^^^^

    /E:/flutter/packages/flutter/lib/src/widgets/text.dart:456:9: Context: Found this candidate, but the arguments don't match.

      const Text.rich(

            ^^^^^^^^^

    Target kernel_snapshot failed: Exception

     

     

    FAILURE: Build failed with an exception.

     

    * Where:

    Script 'E:\flutter\packages\flutter_tools\gradle\src\main\groovy\flutter.groovy' line: 1297

     

    * What went wrong:

    Execution failed for task ':app:compileFlutterBuildRelease'.

    > Process 'command 'E:\flutter\bin\flutter.bat'' finished with non-zero exit value 1

     

    * Try:

    > Run with --stacktrace option to get the stack trace.

    > Run with --info or --debug option to get more log output.

    > Run with --scan to get full insights.

     

    * Get more help at https://help.gradle.org

     

    BUILD FAILED in 2m 58s

  10. Generic placeholder image

    kevin replied

    Hello

    can you please provide the full error log 

    Thanks & Regards
    - Kevin
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