Task :app:transformDexArchiveWithExternalLibsDexMergerForDebug FAILED [ ] 123 actionable tasks: 5 executed, 118 up-to-date [ ] ********************************************************* [ ] WARNING: This version of path_provider will break your Android build if it or its dependencies aren't compatible with AndroidX. [ ] See https://goo.gl/CP92wY for more information on the problem and how to fix it. [ ] This warning prints for all Android build failures. The real root cause of the error may be unrelated. [ ] ********************************************************* [ ] D8: Program type already present: android.support.v4.media.MediaBrowserCompat$ConnectionCallback$StubApi21 [ +1 ms] FAILURE: Build failed with an exception. [ ] * What went wrong: [ ] Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'. [ ] > com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: [ ] Program type already present: android.support.v4.media.MediaBrowserCompat$ConnectionCallback$StubApi21 [ ] Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes. [ ] * 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 10s [ +349 ms] Running Gradle task 'assembleDebug'... (completed in 11.4s) [ +1 ms] ******************************************************************************************* [ +1 ms] The Gradle failure may have been because of AndroidX incompatibilities in this Flutter app. [ ] See https://goo.gl/CP92wY for more information on the problem and how to fix it. [ ] ******************************************************************************************* [ +14 ms] "flutter run" took 15,209ms. [ ] "flutter run" took 15,209ms. Gradle task assembleDebug failed with exit code 1

#0 throwToolExit (package:flutter_tools/src/base/common.dart:28:3) #1 _buildGradleProjectV2 (package:flutter_tools/src/android/gradle.dart:507:5) #2 _asyncThenWrapperHelper. (dart:async-patch/async_patch.dart:77:64) #3 _rootRunUnary (dart:async/zone.dart:1132:38) #4 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #5 _FutureListener.handleValue (dart:async/future_impl.dart:126:18) #6 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45) #7 Future._propagateToListeners (dart:async/future_impl.dart:668:32) #8 Future._complete (dart:async/future_impl.dart:473:7) #9 _SyncCompleter.complete (dart:async/future_impl.dart:51:12) #10 _AsyncAwaitCompleter.complete (dart:async-patch/async_patch.dart:28:18) #11 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:294:13) #12 runCommandAndStreamOutput (package:flutter_tools/src/base/process.dart) #13 _asyncThenWrapperHelper. (dart:async-patch/async_patch.dart:77:64) #14 _rootRunUnary (dart:async/zone.dart:1132:38) #15 _CustomZone.runUnary (dart:async/zone.dart:1029:19) #16 _FutureListener.handleValue (dart:async/future_impl.dart:126:18) #17 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45) #18 Future._propagateToListeners (dart:async/future_impl.dart:668:32) #19 Future._completeWithValue (dart:async/future_impl.dart:483:5) #20 Future._asyncComplete. (dart:async/future_impl.dart:513:7) #21 _rootRun (dart:async/zone.dart:1124:13) #22 _CustomZone.run (dart:async/zone.dart:1021:19) #23 _CustomZone.runGuarded (dart:async/zone.dart:923:7) #24 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:963:23) #25 _microtaskLoop (dart:async/schedule_microtask.dart:41:21) #26 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5) #27 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:116:13) #28 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:173:5)

尝试过使用Android Studio自动升级AndroidX包、手工升级。失败。 尝试将path_provider降级到0.4.1版本，失败。 都是类似上面的错误。

../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/dynamic_theme-1.0.1/lib/dynamic_theme.dart:25:46: Error: Method not found: 'TypeMatcher'. return context.ancestorStateOfType(const TypeMatcher()); ^^^^^^^^^^^ ../AppData/Local/Pub/Cache/hosted/pub.dartlang.org/dynamic_theme-1.0.1/lib/dynamic_theme.dart:25:20: Error: The method 'ancestorStateOfType' isn't defined for the class 'BuildContext'.

• 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/E:/flutterSDK/flutter/packages/flutter/lib/src/widgets/framework.dart'). Try correcting the name to the name of an existing method, or defining a method named 'ancestorStateOfType'. return context.ancestorStateOfType(const TypeMatcher()); ^^^^^^^^^^^^^^^^^^^ /C:/Users/Softbakso%20Limited/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/provider-3.2.0/lib/src/delegate_widget.dart:194:18: Error: Superclass has no method named 'inheritFromElemen t'. return super.inheritFromElement(ancestor, aspect: aspect); ^^^^^^^^^^^^^^^^^^ /C:/Users/Softbakso%20Limited/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/provider-3.2.0/lib/src/provider.dart:259:19: Error: The method 'inheritFromWidgetOfExactType' isn't defined for the class 'BuildContext'.
• 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/E:/flutterSDK/flutter/packages/flutter/lib/src/widgets/framework.dart'). Try correcting the name to the name of an existing method, or defining a method named 'inheritFromWidgetOfExactType'. ? context.inheritFromWidgetOfExactType(type) as InheritedProvider ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ /C:/Users/Softbakso%20Limited/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/provider-3.2.0/lib/src/provider.dart:260:19: Error: The method 'ancestorInheritedElementForWidgetOfExactType ' isn't defined for the class 'BuildContext'.
• 'BuildContext' is from 'package:flutter/src/widgets/framework.dart' ('/E:/flutterSDK/flutter/packages/flutter/lib/src/widgets/framework.dart'). Try correcting the name to the name of an existing method, or defining a method named 'ancestorInheritedElementForWidgetOfExactType'. : context.ancestorInheritedElementForWidgetOfExactType(type)?.widget ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

FAILURE: Build failed with an exception.

• Where: Script 'E:\flutterSDK\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1035

• What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'.

Process 'command 'E:\flutterSDK\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 51s Running Gradle task 'assembleDebug'... Running Gradle task 'assembleDebug'... Done 52.5s Exception: Gradle task assembleDebug failed with exit code 1

As I stated in title, I would like to know why is this code only android exclusive and iOS is not support? is this due to the flutter_file_manager plugin? what can we do to make is support iOS?