After creating a Flutter project, open MainActivity and the Can't resolve symbol FlutterActivity error occurs
Not much nonsense, a direct solution
Delete the android or ios folder in the project and run it in the terminal of the project
flutter create .to regenerate these directories
But, there is a problem. I originally wanted to develop in java language, and use this command to directly generate Kotlin language mode. . . . pending update
then. . Ha ha
The default is the Kotlin language. Personally, I still like to use java to develop, use:
create -a java. Command can generate java language mode