Flutter依赖（引入）蒲公英SDK导致报错

Finished with error: Gradle task assembleDebug failed with exit code 1

G:\FlutterSDK\fluttersdk\.pub-cache\hosted\pub.flutter-io.cn\flutter_pgyer-1.0.1\android\src\main\java\com\crazecoder\flutter.pgyer\FlutterPgyerPlugin.java:214: ????: ?????????
                        public void downloadSuccessful(File file) {
                                                       ^
  ????: ?? File
1 ??????

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ‘:flutter_pgyer:compileDebugJavaWithJavac‘.
> Compilation failed; see the compiler error output for details.

* 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 11s
Finished with error: Gradle task assembleDebug failed with exit code 1

flutter_pgyer: ^1.0.1

  flutter_pgyer:
    git:
      url: https://github.com/crazecoder/flutter_pgyer.git