What is flutter clean?

How to Clear Flutter’s Build Cache?

You can activate the command by launching the command palette (View -> Command Palette) and running “Flutter Clean Architecture: New Feature” . Or you can right click on the directory in which you’d like to create the feature and select the “New Feature” command from the context menu.

If you haven’t, you can use Flutter Android Studio post to do that.

Go to Tools > Flutter > Flutter Clean to clear the build cache of the Flutter project.