Flutter iOS App.
Previous version submitted passed. Only change the version and some text, submit has error: "ITMS-90426: Invalid Swift Support - The SwiftSupport folder is missing. Rebuild your app using the current public (GM) version of Xcode and resubmit it." the release steps:
flutter clean; flutter pub get; flutter build ios --release; xcode - clean build folder; archive; distribute app
Searched online and tried many suggestions, none works.