android - 如何修复 Flutter 中的“错误：无源文件”？

Question

一切正常，但升级我的 Android 工作室后，我开始在运行时收到以下错误flutter run：

* What went wrong:
Execution failed for task ':firebase_core:compileDebugJavaWithJavac'.
> error: no source files

扑医生

[✓] Flutter (Channel stable, 2.2.3, on macOS 10.16 20A4300b darwin-x64, locale
    fr-BF)
[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 2020.3)
[✓] VS Code (version 1.60.0)
[✓] Connected device (3 available)

• No issues found!

发布规范.yaml

  firebase_messaging: ^7.0.0
  firebase_core: ^0.5.0
  firebase_analytics: ^6.3.0
  cloud_firestore: ^0.14.0+2
  firebase_core_web: ^0.2.0
  cloud_firestore_web: ^0.2.0+1
  cloud_firestore_platform_interface: ^2.0.1

请问我该如何解决这个问题？