Flutter - iOS: Command /bin/sh failed with exit code 255

Question

Good afternoon,

I try to run a Flutter project on iOS, previously successfully run on Android. However, I got an error:

\"x86_64\" is not an allowed valu         


        

Answer 1

For me helped:

1. Disconnect all physical phone's from mac.
2. Close Xcode.

3. In terminal command

   flutter clean

4. Start Xcode by running Runner.xcworkspace, that you have inside your project folder /yourProjectFolder/ios/Runner

5. Choose menu Product - Archive

6. That's it! After that build was successful. Appear windows where you can distribute app.