Flutter Release apk is not working properly?

Question

I had run this flutter build apk to release my App. Now I had build verison 2 of that.

Now again I want to release my version 2 App.To get the release apk

Answer 1

I think you need

flutter clean

(I'd consider it a bug that this is necessary, but I'm encountering it as well)

and

flutter build apk --release