【发布时间】：2020-02-03 23:57:46
【问题描述】：
没有颤振命令似乎在终端上不起作用..当我尝试运行颤振时，我总是收到崩溃报告。我已经尝试了几个颤振命令，但我得到了相同的以下报告。
Oops; flutter has exited unexpectedly.
Sending crash report to Google.
Crash report sent (report ID: 351c1d27593c06ff)
Crash report written to C:\Users\Gyasi\AppData\Local\Temp\flutter_17.log;
please let us know at https://github.com/flutter/flutter/issues.
日志文件
Flutter 崩溃报告；请提交至https://github.com/flutter/flutter/issues。
命令
颤振帮助
异常
FileSystemException: FileSystemException: writeFrom failed, path = 'C:\Users\Gyasi\Documents\TUT\FLUTTER\flutter\version'（操作系统错误：访问被拒绝。 , 错误号 = 5)
#0 _RandomAccessFile.writeFrom.<anonymous closure> (dart:io/file_impl.dart:856:9)
#1 _rootRunUnary (dart:async/zone.dart:1132:38)
#2 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#3 _FutureListener.handleValue (dart:async/future_impl.dart:126:18)
#4 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45)
#5 Future._propagateToListeners (dart:async/future_impl.dart:668:32)
#6 Future._completeWithValue (dart:async/future_impl.dart:483:5)
#7 Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:513:7)
#8 _rootRun (dart:async/zone.dart:1124:13)
#9 _CustomZone.run (dart:async/zone.dart:1021:19)
#10 _CustomZone.runGuarded (dart:async/zone.dart:923:7)
#11 _CustomZone.bindCallbackGuarded.<anonymous closure> (dart:async/zone.dart:963:23)
#12 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#13 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#14 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:116:13)
#15 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:173:5)
扑医生
[32m[✓][39m Flutter (Channel stable, v1.7.8+hotfix.4, on Microsoft Windows [Version 10.0.17134.1040], locale en-US)
[32m•[39m Flutter version 1.7.8+hotfix.4 at C:\Users\Gyasi\Documents\TUT\FLUTTER\flutter
[32m•[39m Framework revision 20e59316b8 (3 months ago), 2019-07-18 20:04:33 -0700
[32m•[39m Engine revision fee001c93f
[32m•[39m Dart version 2.4.0
[32m[✓][39m Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[32m•[39m Android SDK at C:\Users\Gyasi\AppData\Local\Android\Sdk
[32m•[39m Android NDK location not configured (optional; useful for native profiling support)
[32m•[39m Platform android-28, build-tools 28.0.3
[32m•[39m ANDROID_HOME = C:\Users\Gyasi\AppData\Local\Android\Sdk
[32m•[39m Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
[32m•[39m Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b02)
[32m•[39m All Android licenses accepted.
[32m[✓][39m Android Studio (version 3.1)
[32m•[39m Android Studio at C:\Program Files\Android\Android Studio
[32m•[39m Flutter plugin version 29.0.1
[32m•[39m Dart plugin version 173.4700
[32m•[39m Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b02)
[32m[✓][39m VS Code, 64-bit edition (version 1.38.1)
[32m•[39m VS Code at C:\Program Files\Microsoft VS Code
[32m•[39m Flutter extension version 3.5.1
[33m[!][39m Connected device
[32m•[39m Device 26EBB18325159243 is not authorized.
You might need to check your device for an authorization dialog.
[33m![39m Doctor found issues in 1 category.
【问题讨论】：
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尝试按照官方文档安装flutter。如果您无法运行 Flutter 命令，这可能是因为您没有运行 flutter.bat 脚本文件，也没有将 flutter/bin 文件夹添加到环境变量中
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成功的话可以在这里给出进度
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请注明
flutter doctor的结果 -
@Taio 每个命令都失败了，包括颤振医生。自从安装 dart SDK 那天起，一切都运行良好。我已经用相同的设置构建了 3 个应用程序......
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@pasanbuddhika flutter 医生给了我同样的错误报告