Android Studio – Flutter Throw Errors When opening AndroidManifest.xml

../android/app/source/main/AndroidManifest.xml

Unresolved class ‘{applicationName}’

Cannot resolve symbol ‘@mipmap/ic_launcher’

MainActivity must extend android.app.Activity

Cannot resolve symbol ‘@style/LaunchTheme’

Cannot resolve symbol ‘@style/NormalTheme’

I created new project then I checked AndroidManifest.xml file and it throw couple of error.
My flutter looks okay on flutter doctor.

Any ideas on how to resolve?

Thanks!