Answers for "Error: Cannot run with sound null safety, because the following dependencies don't support null safety: - package:splashscreen"

Cannot run with sound null safety, because the following dependencies don't support null safety: - package:flutter_settings_screens

flutter run --no-sound-null-safety

Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

flutter run --no-sound-null-safety

Cannot run with sound null safety, because the following dependencies don't support null safety:

In Android Studio:

Run --> Edit Configurations --> Add Additional Run args --> --no-sound-null-safety

cannot run with sound null safety because the following dependencies don't support null safety

---- Add before imports of file main.dart ----

// @dart=2.9

void main() {
  .........
}