我的Flutter 应用程序在启动屏幕上冻结，我得到以下错误日志(log):
Built build\app\outputs\apk\debug\app-debug.apk.
I/Choreographer(18870): Skipped 75 frames! The application may be doing too much work on its main thread.
D/EGL_emulation(18870): eglMakeCurrent: 0xe8885480: ver 3 0 (tinfo 0xe88835a0)
I/OpenGLRenderer(18870): Davey! duration=2142ms; Flags=1, IntendedVsync=65263803118670, Vsync=65265053118620, OldestInputEvent=9223372036854775807, NewestInputEvent=0, HandleInputStart=65265065657900, AnimationStart=65265065738100, PerformTraversalsStart=65265065780200, DrawStart=65265126086300, SyncQueued=65265197367200, SyncStart=65265199471900, IssueDrawCommandsStart=65265199680700, SwapBuffers=65265651453000, FrameCompleted=65265947767800, DequeueBufferDuration=12659000, QueueBufferDuration=920000,
Syncing files to device Android SDK built for x86...
E/flutter (18870): [ERROR:flutter/lib/ui/ui_dart_state.cc(148)] Unhandled Exception: MissingPluginException(No implementation found for method getApplicationDocumentsDirectory on channel plugins.flutter.io/path_provider)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #0 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:314:7)
Syncing files to device Android SDK built for x86...
E/flutter (18870): <asynchronous suspension>
Syncing files to device Android SDK built for x86...
E/flutter (18870): #1 getApplicationDocumentsDirectory (package:path_provider/path_provider.dart:84:22)
Syncing files to device Android SDK built for x86...
E/flutter (18870): <asynchronous suspension>
Syncing files to device Android SDK built for x86...
E/flutter (18870): #2 DbContext.initDb (package:appentrega/database.dart:34:45)
Syncing files to device Android SDK built for x86...
E/flutter (18870): <asynchronous suspension>
Syncing files to device Android SDK built for x86...
E/flutter (18870): #3 DbContext.getContext (package:appentrega/database.dart:27:21)
Syncing files to device Android SDK built for x86...
E/flutter (18870): <asynchronous suspension>
Syncing files to device Android SDK built for x86...
E/flutter (18870): #4 _SplashScreenState.startTime (package:appentrega/splash.dart:16:34)
Syncing files to device Android SDK built for x86...
E/flutter (18870): <asynchronous suspension>
Syncing files to device Android SDK built for x86...
E/flutter (18870): #5 _SplashScreenState.initState (package:appentrega/splash.dart:33:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #6 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4068:58)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #7 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3919:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #8 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #9 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #10 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5127:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #11 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #12 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #13 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3961:16)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #14 Element.rebuild (package:flutter/src/widgets/framework.dart:3738:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #15 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3924:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #16 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3919:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #17 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #18 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #19 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5127:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #20 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #21 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #22 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5127:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #23 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #24 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #25 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5127:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #26 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #27 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #28 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5127:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #29 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #30 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #31 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3961:16)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #32 Element.rebuild (package:flutter/src/widgets/framework.dart:3738:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #33 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3924:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #34 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4088:11)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #35 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3919:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #36 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #37 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #38 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3961:16)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #39 Element.rebuild (package:flutter/src/widgets/framework.dart:3738:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #40 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3924:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #41 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3919:5)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #42 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3101:14)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #43 Element.updateChild (package:flutter/src/widgets/framework.dart:2904:12)
Syncing files to device Android SDK built for x86...
E/flutter (18870): #44
Syncing files to device Android SDK built for x86...
D/EGL_emulation(18870): eglMakeCurrent: 0xe8885720: ver 3 0 (tinfo 0xe88832f0)
Syncing files to device Android SDK built for x86...
4.034ms (!)
看起来问题出在这里: [error:fltter/lib/ui/ui_dart_state.cc(148)]未处理异常:MissingPluginException(在通道plugins.fltter.io/path_Provider上找不到getApplicationDocumentsDirectory方法的实现)
已经这样做了:
-删除所有插件并重新安装flutter pub get.
-运行flutter clean和flutter run