flutter 2.x运行flutter run 报错Cannot run with sound null safety, because the following dependenciesdon'

flutter 2.x运行flutter run 报错Cannot run with sound null safety, because the following dependenciesdon't support null safety:

flutter sdk提示不是支持 null safety模式

采用下面办法解决问题

flutter run --no-sound-null-safety
flutter build apk --no-sound-null-safety