visual studio code – VSCode Flutter – over 750 problems reported in build/…/SourcePackages files after flutter 3.44 upgrade

I’ve just upgraded flutter to the latest 3.44 version and my Problems tab is reporting a huge number of issues in files in build/macOS/SourcePackages and build/iOS/SourcePackages; e.g.

build/macos/SourcePackages/firebase_auth-6.5.1/example/lib/auth.dart

These are obscuring the problems I want to see in my code.

Does anyone have any idea why I’m suddenly seeing all these now and what I can do about it?

I can’t see an option to just report problems in my code.