android-studio - 尝试运行 flutter 应用程序并失败说构建失败并出现异常

Question

我正在尝试运行一个 flutter 应用程序，但由于某种我无法弄清楚的原因，它不会运行。这就是我运行时得到的。我确实将 flutter/bin 浴添加到系统路径中，但这也不起作用。这发生在我重新格式化 window 之后。我所做的正是:

安装 Android Studio

下载flutter sdk

在 Android Studio 中添加了 flutter 插件。

这是我在格式化 PC 之前第一次这样做。它奏效了。

Launching lib\main.dart on Mi 9T in debug mode...
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:signingConfigWriterDebug'.
> java.io.IOException: Unable to delete file: E:\codes\flutter\im_poor\build\app\intermediates\signing_config\debug\out\signing-config.json

* 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 5s
Finished with error: Gradle task assembleDebug failed with exit code 1

这就是 flutter 医生所说的:

C:\flutter_windows_v1.9.1+hotfix.6-stable\flutter\bin\flutter.bat doctor --verbose
[√] Flutter (Channel stable, v1.12.13+hotfix.8, on Microsoft Windows [Version 10.0.17763.1098], locale en-US)
    • Flutter version 1.12.13+hotfix.8 at C:\flutter_windows_v1.9.1+hotfix.6-stable\flutter
    • Framework revision 0b8abb4724 (5 weeks ago), 2020-02-11 11:44:36 -0800
    • Engine revision e1e6ced81d
    • Dart version 2.7.0

[!] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
    • Android SDK at C:\Users\Joseph\AppData\Local\Android\sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.3
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)
    X Android license status unknown.
      Try re-installing or updating your Android SDK Manager.
      See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.

[√] Android Studio (version 3.6)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 44.0.2
    • Dart plugin version 192.7761
    • Java version OpenJDK Runtime Environment (build 1.8.0_212-release-1586-b04)

[√] Connected device (2 available)
    • Mi 9T               • d8f2ce60      • android-arm64 • Android 10 (API 29)
    • AOSP on IA Emulator • emulator-5556 • android-x86   • Android 9 (API 28) (emulator)

! Doctor found issues in 1 category.
Process finished with exit code 0

Answer 1

我实际上是通过创建一个新项目并从旧项目中复制所有代码来解决这个问题。