如何解决“颤振已意外退出”答案

【问题标题】：How to fix "flutter has exited unexpectedly"如何解决“颤振已意外退出”
【发布时间】：2019-10-17 01:41:00
【问题描述】：

我正在 macOS 上使用 Flutter 开发应用程序。当我切换到windows机器进行开发时，它显示以下错误

哎呀； Flutter 意外退出。向 Google 发送崩溃报告。已发送崩溃报告（报告 ID：4c15631f67927e73）写入 D:\hcbmobile\flutter_11.log 的崩溃报告；请通过https://github.com/flutter/flutter/issues告诉我们。

我已经在这个链接中创建了问题：https://github.com/flutter/flutter/issues/33645

生成的日志文件显示以下崩溃报告：

命令

flutter run --machine -t lib\main.dart -d B3698Y11HA4122 --track-widget-creation --start-paused

异常

FileSystemException：FileSystemException：无法打开文件，路径 = 'D:\hcbmobile.flutter-plugins'（操作系统错误：访问被拒绝。 , 错误号 = 5)

#0      _File.throwIfError (dart:io/file_impl.dart:643:7)
#1      _File.openSync (dart:io/file_impl.dart:487:5)
#2      _File.writeAsBytesSync (dart:io/file_impl.dart:612:31)
#3      _File.writeAsStringSync (dart:io/file_impl.dart:636:5)
#4      _LocalFile&LocalFileSystemEntity&ForwardingFile.writeAsStringSync (package:file/src/forwarding/forwarding_file.dart:147:16)
#5      _writeFlutterPluginsList (package:flutter_tools/src/plugins.dart:104:17)
#6      refreshPluginsList (package:flutter_tools/src/plugins.dart:297:24)
#7      FlutterProject.ensureReadyForPlatformSpecificTooling (package:flutter_tools/src/project.dart:175:5)
<asynchronous suspension>
#8      FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:478:21)
<asynchronous suspension>
#9      FlutterCommand.run.<anonymous closure> (package:flutter_tools/src/runner/flutter_command.dart:424:33)
<asynchronous suspension>
#10     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:29)
<asynchronous suspension>
#11     _rootRun (dart:async/zone.dart:1124:13)
#12     _CustomZone.run (dart:async/zone.dart:1021:19)
#13     _runZoned (dart:async/zone.dart:1516:10)
#14     runZoned (dart:async/zone.dart:1463:12)
#15     AppContext.run (package:flutter_tools/src/base/context.dart:152:18)
<asynchronous suspension>
#16     FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:415:20)
#17     CommandRunner.runCommand (package:args/command_runner.dart:196:27)
<asynchronous suspension>
#18     FlutterCommandRunner.runCommand.<anonymous closure> (package:flutter_tools/src/runner/flutter_command_runner.dart:396:21)
<asynchronous suspension>
#19     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:29)
<asynchronous suspension>
#20     _rootRun (dart:async/zone.dart:1124:13)
#21     _CustomZone.run (dart:async/zone.dart:1021:19)
#22     _runZoned (dart:async/zone.dart:1516:10)
#23     runZoned (dart:async/zone.dart:1463:12)
#24     AppContext.run (package:flutter_tools/src/base/context.dart:152:18)
<asynchronous suspension>
#25     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:356:19)
<asynchronous suspension>
#26     CommandRunner.run.<anonymous closure> (package:args/command_runner.dart:111:29)
#27     new Future.sync (dart:async/future.dart:224:31)
#28     CommandRunner.run (package:args/command_runner.dart:111:11)
#29     FlutterCommandRunner.run (package:flutter_tools/src/runner/flutter_command_runner.dart:242:18)
#30     run.<anonymous closure> (package:flutter_tools/runner.dart:60:20)
<asynchronous suspension>
#31     AppContext.run.<anonymous closure> (package:flutter_tools/src/base/context.dart:153:29)
<asynchronous suspension>
#32     _rootRun (dart:async/zone.dart:1124:13)
#33     _CustomZone.run (dart:async/zone.dart:1021:19)
#34     _runZoned (dart:async/zone.dart:1516:10)
#35     runZoned (dart:async/zone.dart:1463:12)
#36     AppContext.run (package:flutter_tools/src/base/context.dart:152:18)
<asynchronous suspension>
#37     runInContext (package:flutter_tools/src/context_runner.dart:54:24)
<asynchronous suspension>
#38     run (package:flutter_tools/runner.dart:51:10)
#39     main (package:flutter_tools/executable.dart:59:9)
<asynchronous suspension>
#40     main (file:///D:/flutter/packages/flutter_tools/bin/flutter_tools.dart:8:3)
#41     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:298:32)
#42     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:171:12)

扑医生

[✓] Flutter (Channel dev, v1.6.6, on Microsoft Windows [Version 10.0.17134.765], locale en-US)
    • Flutter version 1.6.6 at D:\flutter
    • Framework revision e1a784ae3f (2 days ago), 2019-05-28 21:53:03 -0700
    • Engine revision 8dc3a4cde2
    • Dart version 2.3.2 (build 2.3.2-dev.0.0 e3edfd36b2)

[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
    • Android SDK at C:\Users\USER\AppData\Local\Android\sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: D:\android\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
    • All Android licenses accepted.

[✓] Android Studio (version 3.3)
    • Android Studio at D:\android
    • Flutter plugin version 33.3.1
    • Dart plugin version 182.5215
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)

[✓] Connected device (1 available)
    • Symphony P7 PRO • B3698Y11HA4122 • android-arm64 • Android 6.0 (API 23)

• No issues found!

我已经尝试过flutter clean和flutter upgrade，但是还是不行。

【问题讨论】：

什么是D:\hcbmobile.flutter-plugins？它存在吗？它可读吗？

标签： flutter dart

【解决方案1】：

我试图在 vs code 终端中使用命令“flutter create”创建一个颤振项目，我得到了这个错误

对我有用的是我关闭了 vsCode 并使用 powershell 而不是 vsCode 终端来创建项目，幸好它没有显示任何错误

【讨论】：

【解决方案2】：

只需删除项目文件夹中的 .flutter-plugins 文件即可。

【讨论】：

我在设置 firebase_messaging 插件后遇到了同样的问题，这对我不起作用

【解决方案3】：

我在使用 Android Studio 创建 Flutter 项目时第一次遇到此错误。然后我也尝试使用 vs 代码和命令提示符。我遇到了同样的错误。

这些步骤可以帮助我修复错误；
1.删除现有的flutter文件夹。

2.转到此链接：flutter.dev/docs/get-started/install/

3. 在新文件夹中再次安装颤振。（仔细按照说明进行操作。）

不要将 Flutter 安装在需要提升权限的目录（如 C:\Program Files\）中。

4.再次设置环境变量。

5.run flutter doctor
（如果您正确设置所有内容，则不会出现错误。）

6.在你的项目目录中创建一个项目。

完成:)

【讨论】：