مشكلة Build failed with an exception عند بناء تطبيق flutter

قمت بتنفيذ flutter clean وثم flutter build apk وظهرت لي هذه المشكلة:

Error: Unable to read file: C:\xampp\htdocs\������ �������\app\app\.dart_tool\flutter_build\5296b301865bdee3da02627ae619c94f\app.dill
../../third_party/dart/runtime/vm/dart_api_impl.cc: 2234: error: Dart_ExitScope expects there to be a current isolate. Did you forget to call Dart_CreateIsolateGroup or Dart_EnterIsolate?
Error: Unable to read file: C:\xampp\htdocs\������ �������\app\app\.dart_tool\flutter_build\5296b301865bdee3da02627ae619c94f\app.dill
../../third_party/dart/runtime/vm/dart_api_impl.cc: 2234: error: Dart_ExitScope expects there to be a current isolate. Did you forget to call Dart_CreateIsolateGroup or Dart_EnterIsolate?
Error: Unable to read file: C:\xampp\htdocs\������ �������\app\app\.dart_tool\flutter_build\5296b301865bdee3da02627ae619c94f\app.dill
../../third_party/dart/runtime/vm/dart_api_impl.cc: 2234: error: Dart_ExitScope expects there to be a current isolate. Did you forget to call Dart_CreateIsolateGroup or Dart_EnterIsolate?
Dart snapshot generator failed with exit code -1073740791
Dart snapshot generator failed with exit code -1073740791
Dart snapshot generator failed with exit code -1073740791


FAILURE: Build failed with an exception.

* Where:
Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: ????

* What went wrong:
Execution failed for task ':app:compileFlutterBuildRelease'.
> Process 'command 'C:\flutter\bin\flutter.bat'' finished with non-zero exit value ?

* 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 4m 13s
Running Gradle task 'assembleRelease'...                          277.6s
Gradle task assembleRelease failed with exit code 1
PS C:\xampp\htdocs\السيرة النبوية\app\app>