Flutter 在channel plugins.flatter.io/path_provider上未找到方法getApplicationDocumentsDirectory的实现

我的颤振应用程序在启动屏幕上冻结，我得到以下错误日志：

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 (!)

build\app\outputs\apk\debug\app-debug.apk。
我/编舞（18870）：跳过了75帧！应用程序可能在其主线程上做了太多工作。
D/EGL_仿真（18870）：eglMakeCurrent:0xe8885480:ver 3 0（tinfo 0xe88835a0）
I/OpenGLE（18870）：戴维！持续时间=2142ms；Flags=1，IntentendedVSync=65263803118670，Vsync=65265053118620，OldestInputEvent=9223372036854775807，NewestInputEvent=0，HandleInputStart=65265065657900，AnimationStart=65265065738100，PerformTraversalsStart=65265065780200，DrawStart=65265126086300，SyncQueued=65265197367200，SyncStart=65265199471900，IssueDrawCommandsStart=65265199680700，SwapBuffers=652651453000，FrameCompleted=65265947767800，DequeueBufferDuration=12659000，QueueBufferDuration=920000，
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：[ERROR:flatter/lib/ui/ui\u dart\u state.cc（148）]未处理的异常：MissingPluginException（在channel plugins.flatter.io/path\u provider上找不到方法GetApplicationDocuments目录的实现）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#0 MethodChannel.invokeMethod（包：flatter/src/services/platform_channel.dart:314:7）
正在将文件同步到为x86构建的Android SDK设备。。。
E/颤振（18870）：
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#1获取应用程序文档目录（包：路径提供程序/路径提供程序。dart:84:22）
正在将文件同步到为x86构建的Android SDK设备。。。
E/颤振（18870）：
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#2 DbContext.initDb（包：appentrega/database.dart:34:45）
正在将文件同步到为x86构建的Android SDK设备。。。
E/颤振（18870）：
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#3 DbContext.getContext（包：appentrega/database.dart:27:21）
正在将文件同步到为x86构建的Android SDK设备。。。
E/颤振（18870）：
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#4#SplashScreenState.startTime（包装：appentrega/splash.dart:16:34）
正在将文件同步到为x86构建的Android SDK设备。。。
E/颤振（18870）：
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#5#SplashScreenState.initState（包装：appentrega/splash.dart:33:5）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#6 StatefulElement._firstBuild（包：flatter/src/widgets/framework.dart:4068:58）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#7 ComponentElement.mount（包：flatter/src/widgets/framework.dart:3919:5）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#8 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3101:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#9 Element.updateChild（包：flatter/src/widgets/framework.dart:2904:12）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#10 SingleChildRenderObjectElement.mount（包：flatter/src/widgets/framework.dart:5127:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#11 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3101:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#12 Element.updateChild（包：flatter/src/widgets/framework.dart:2904:12）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#13 ComponentElement.performRebuild（包：flatter/src/widgets/framework.dart:3961:16）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#14 Element.rebuild（包：flatter/src/widgets/framework.dart:3738:5）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#15个组件元素。_firstBuild（包：flatter/src/widgets/framework.dart:3924:5）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#16 ComponentElement.mount（包：flatter/src/widgets/framework.dart:3919:5）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#17 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3101:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#18 Element.updateChild（包：flatter/src/widgets/framework.dart:2904:12）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#19 SingleChildRenderObjectElement.mount（包：flatter/src/widgets/framework.dart:5127:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#20 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3101:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#21 Element.updateChild（包：flatter/src/widgets/framework.dart:2904:12）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#22 SingleChildRenderObjectElement.mount（包：flatter/src/widgets/framework.dart:5127:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#23 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3101:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#24 Element.updateChild（包：flatter/src/widgets/framework.dart:2904:12）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#25 SingleChildRenderObjectElement.mount（包：flatter/src/widgets/framework.dart:5127:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#26 Element.inflateWidget（包：flatter/src/widgets/framework.dart:3101:14）
正在将文件同步到为x86构建的Android SDK设备。。。
E/flatter（18870）：#27 Element.updateChild（包：flatter/src/widgets/framework.dart:2904:12）
将文件同步到dev
android {
    ...

    buildTypes {
        release {
            ...
         
            shrinkResources false
            minifyEnabled false
        }
    }
}

        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />

import 'package:flutter/foundation.dart' show kIsWeb;

if (kIsWeb) {
    // Set web-specific directory
} else {
    appDocumentDirectory = await path_provider.getApplicationDocumentsDirectory();
}