Xcode 11.6 fails with: Command PhaseScriptExecution failed with a nonzero exit code

Question

I have a flutter application using Firebase / Firestore. In my flutter application flutter build iOS is working but in Xcode the Archive and building in General fails with

Command PhaseScriptExecution failed with a nonzero exit code

I already tried:

• keychain access -> right click on login -> lock & unlock again -> clear Xcode project and make build again.
• also pod deintegrate etc. is not working

But it is not working. Also tried setting up new project but after firestore integration it fails.

The domain/default pair of (/Users/username/Library/Developer/Xcode/DerivedData/Runner-bhnxzkbbayxxhjauqwbcxaiedcis/Build/Products/Debug-iphonesimulator/Runner.app/Frameworks/App.framework/flutter_assets/ios/Flutter/App.framework/Info.plist, CFBundleExecutable) does not exist
fatal error: lipo: can't map input file: /Users/username/Library/Developer/Xcode/DerivedData/Runner-bhnxzkbbayxxhjauqwbcxaiedcis/Build/Products/Debug-iphonesimulator/Runner.app/Frameworks/App.framework/flutter_assets/ios/Flutter/App.framework/ (Invalid argument)
fatal error: lipo: can't map input file: /Users/username/Library/Developer/Xcode/DerivedData/Runner-bhnxzkbbayxxhjauqwbcxaiedcis/Build/Products/Debug-iphonesimulator/Runner.app/Frameworks/App.framework/flutter_assets/ios/Flutter/App.framework/ (Invalid argument)
Failed to extract x86_64 for /Users/username/Library/Developer/Xcode/DerivedData/Runner-bhnxzkbbayxxhjauqwbcxaiedcis/Build/Products/Debug-iphonesimulator/Runner.app/Frameworks/App.framework/flutter_assets/ios/Flutter/App.framework/. Running lipo -info:
fatal error: lipo: can't map input file: /Users/username/Library/Developer/Xcode/DerivedData/Runner-bhnxzkbbayxxhjauqwbcxaiedcis/Build/Products/Debug-iphonesimulator/Runner.app/Frameworks/App.framework/flutter_assets/ios/Flutter/App.framework/ (Invalid argument)
Command PhaseScriptExecution failed with a nonzero exit code

Solution

ok so in my case the problem occurred after a flutter upgrade. My app is on the stable channel and I updated it to the current stable version.

before that it was running on 1.17.5 there everything was working fine, the error occurred on 1.20.0

so the solution was a downgrade back to 1.17.5

Comments

[Nehal]

could you solve it?

[Hannah Stark]

@Nehal using a different machine solved it so I guess it was something in the cache of my PC. But it was not in derived data or something there cause I deleted and cleaned everything like 1000 times before trying another solution like using a different pc