无法读取'ErrorHandlingFile'的文件实例，即使它存在.请验证该文件是否具有读取权限，然后重试 [英] Couldn't read file Instance of 'ErrorHandlingFile' even though it exists. Please verify that this file has read permission and try again

问题描述

由于以下错误，我的Flutter应用无法编译:

My Flutter App is not compiling because of this error:

无法读取'ErrorHandlingFile'的文件实例，即使它存在.请验证该文件是否具有读取权限，然后重试

Couldn't read file Instance of 'ErrorHandlingFile' even though it exists. Please verify that this file has read permission and try again

我厌倦了切换频道和更改版本，但是什么都没做.

I tired switching channels and changing versions but nothing has worked yet.

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, v1.13.6, on Mac OS X 10.15.1 19B88, locale de-DE)

[✓] Android toolchain - develop for Android devices (Android SDK version 28.0.3)
[✓] Xcode - develop for iOS and macOS (Xcode 11.2.1)
[✓] Chrome - develop for the web
[✓] Android Studio (version 3.5)
[!] Android Studio
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    ✗ Android Studio not found at /Applications/Android/Contents
[!] IntelliJ IDEA Community Edition (version 2019.2.3)
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
[✓] VS Code (version 1.36.1)
[✓] Connected device (3 available)

! Doctor found issues in 2 categories.

有什么想法吗?

推荐答案

升级到Beta频道后出现相同的问题.

Had the same problem after upgrade to beta channel.

发现此错误消息只是冰山一角，真正的问题出在您的其中一个插件上.

Found that this error message just a top of an iceberg, real problem is in one of your plugins.

阅读此问题中的讨论，以手动调试应用程序或等待<一个href ="https://github.com/flutter/flutter/pull/48104" rel ="nofollow noreferrer">修复，该错误会导致相应的错误消息.

Read the discussion in this issue to manually debug your application or wait for fix which will result in an appropriate error message.

如果幸运的话-简单的 flutter pub升级将为您的项目解决问题.

If you are lucky - simple flutter pub upgrade will solve the issue for your project.

否则，作为修补程序，您可以降级Flutter版本.

If not, as a hot-fix you can downgrade your flutter version.

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