flutter - 运行项目报错 "package_config.json does not exist"

Question

我目前正在学习 flutter 。突然，当我尝试运行我的项目时，我收到错误消息“D:..\android.dart_tool\package_config.json 不存在。您是否从与您的 pubspec.yaml 文件相同的目录运行此命令？”。我已经检查了该目录，它是正确的。当我转到指定的目录时，没有 package_config.json。有人可以告诉我如何修复这个？或者如何重新创建 json 文件？提前谢谢你。

    Microsoft Windows [Version 10.0.19042.906]
(c) Microsoft Corporation. All rights reserved.

D:\FlutterProject\wndr2u>flutter run
Using hardware rendering with device AOSP on IA Emulator. If you notice graphics artifacts, consider enabling software rendering with "--enable-software-rendering".
Launching lib\main.dart on AOSP on IA Emulator in debug mode...
D:\FlutterProject\wndr2u\android\.dart_tool\package_config.json does not exist.
Did you run this command from the same directory as your pubspec.yaml file?


FAILURE: Build failed with an exception.

* Where:
Script 'D:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1035

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'D:\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done                      2,703ms
Exception: Gradle task assembleDebug failed with exit code 1

Answer 1

1. flutter 干净
2. Flutter 发布
3. 在android模块中打开项目
4. 生成 APK 或 bundle