android - Flutter on Android Studio 从git 克隆问题-Package get' has not been run'

Question

有没有人遇到过这个问题？当我将任何 Flutter 项目从 Git 克隆到 Android Studio 时，然后尝试单击 Get Dependencies ，操作正常完成但不消失，

Package get' has not been run'

而且我也不能将它调试到设备上，既不能调试到 AVD 上!

,

当我运行调试时，这是输出:

 Launching lib\main.dart on SM J410F in debug mode...
[!] Your app isn't using AndroidX.
    To avoid potential build failures, you can quickly migrate your app by following the steps on .
Running Gradle task 'assembleDebug'...

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Android resource linking failed
  Output:  C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:186: error: resource android:attr/fontVariationSettings not found.
  C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\incremental\mergeDebugResources\merged.dir\values\values.xml:187: error: resource android:attr/ttcIndex not found.
  error: failed linking references.

  Command: C:\Users\redoneb\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.1-4818971-windows.jar\d4c8a434a1d578131ca17eb255940ee5\aapt2-3.2.1-4818971-windows\aapt2.exe link -I\
          C:\Users\redoneb\AppData\Local\Android\sdk\platforms\android-27\android.jar\
          --manifest\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\
          -o\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\
          -R\
          @C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\
          --auto-add-overlay\
          --java\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\
          --custom-package\
          co.appbrewery.dicee\
          -0\
          apk\
          --output-text-symbols\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\symbols\debug\R.txt\
          --no-version-vectors
  Daemon:  AAPT2 aapt2-3.2.1-4818971-windows Daemon #0
  Output:  C:\Users\redoneb\.gradle\caches\transforms-1\files-1.1\support-compat-28.0.0.aar\3eb4fa90d4b2cfa5cc449030c34cdf03\res\values\values.xml:89:5-125:25: AAPT: error: resource android:attr/fontVariationSettings not found.

  C:\Users\redoneb\.gradle\caches\transforms-1\files-1.1\support-compat-28.0.0.aar\3eb4fa90d4b2cfa5cc449030c34cdf03\res\values\values.xml:89:5-125:25: AAPT: error: resource android:attr/ttcIndex not found.

  error: failed linking references.
  Command: C:\Users\redoneb\.gradle\caches\transforms-1\files-1.1\aapt2-3.2.1-4818971-windows.jar\d4c8a434a1d578131ca17eb255940ee5\aapt2-3.2.1-4818971-windows\aapt2.exe link -I\
          C:\Users\redoneb\AppData\Local\Android\sdk\platforms\android-27\android.jar\
          --manifest\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\merged_manifests\debug\processDebugManifest\merged\AndroidManifest.xml\
          -o\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\processed_res\debug\processDebugResources\out\resources-debug.ap_\
          -R\
          @C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\incremental\processDebugResources\resources-list-for-resources-debug.ap_.txt\
          --auto-add-overlay\
          --java\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\generated\not_namespaced_r_class_sources\debug\processDebugResources\r\
          --custom-package\
          co.appbrewery.dicee\
          -0\
          apk\
          --output-text-symbols\
          C:\Users\redoneb\AndroidStudioProjects\dicee-flutter\build\app\intermediates\symbols\debug\R.txt\
          --no-version-vectors
  Daemon:  AAPT2 aapt2-3.2.1-4818971-windows Daemon #0

* 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 37s
Finished with error: Gradle task assembleDebug failed with exit code 1

这是一个屏幕截图: Flutter Android Studio Problem Package get has not been run

flutter 医生输出:

C:\flutter\bin\flutter.bat doctor --verbose
[√] Flutter (Channel stable, v1.12.13+hotfix.5, on Microsoft Windows [Version 6.3.9600], locale ar-DZ)
    • Flutter version 1.12.13+hotfix.5 at C:\flutter
    • Framework revision 27321ebbad (2 weeks ago), 2019-12-10 18:15:01 -0800
    • Engine revision 2994f7e1e6
    • Dart version 2.7.0

[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    • Android SDK at C:\Users\redoneb\AppData\Local\Android\sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-29, build-tools 29.0.2
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)
    • All Android licenses accepted.

[√] Android Studio (version 3.5)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin version 42.1.1
    • Dart plugin version 191.8593
    • Java version OpenJDK Runtime Environment (build 1.8.0_202-release-1483-b03)

[√] VS Code (version 1.40.2)
    • VS Code at C:\Users\redoneb\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.6.0

[√] Connected device (1 available)
    • SM J410F • f43a6812 • android-arm • Android 8.1.0 (API 27)

• No issues found!
Process finished with exit code 0

我克隆的每个 Flutter 项目都会发生这种情况。

Answer 1

主题与“The Complete Flutter Development Bootcamp Using Dart”相关

When something wrong and doesn't work,
It's okay in the software development world.

克隆并尝试启动它们后，我在 Android 上也遇到了同样的问题

• https://github.com/londonappbrewery/mi_card_flutter
• https://github.com/londonappbrewery/dicee-flutter
• https://github.com/londonappbrewery/magic-8-ball-flutter
• https://github.com/londonappbrewery/xylophone-flutter
• https://github.com/londonappbrewery/destini-challenge-starting
• https://github.com/londonappbrewery/bmi-calculator-flutter

因此，这里是解决问题的步骤

1) your-cool-flutter-project/android/app/build.gradle

在这个文件中确保你有 29 API 使用了两次，如果你看到 27 然后像这样修改为 29

  compileSdkVersion 29
  targetSdkVersion 29

2) your-cool-flutter-project/android/gradle.properties

检查文件是否有这两行，如果没有则添加

android.useAndroidX=true
android.enableJetifier=true

That's all. Take a breath. Relax. And launch the app =)

• 我非常希望您安装了最新的 Android 和 Flutter ;)*