Exception: Gradle task assembleDebug failed

[hwg3000]

Flutter assets will be downloaded from https://storage.flutter-io.cn. Make sure you trust this source!
Launching lib\main.dart on Redmi K30 Pro in debug mode...
D:\Flutter\hqk\android\app\src\main\java\io\flutter\plugins\GeneratedPluginRegistrant.java:19: ����: �Ҳ�������
flutterEngine.getPlugins().add(new com.cloudbase.cloudbase_null_safety.CloudbaseAuthPlugin());
^
����: �� CloudbaseAuthPlugin
�: ����� com.cloudbase.cloudbase_null_safety
1 ������

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ':app: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 3s
Running Gradle task 'assembleDebug'... 4.0s
Exception: Gradle task assembleDebug failed with exit code 1