The problem “error build: Command PhaseScriptExecution failed with a nonzero exit code” is seen when you are working on XCode and have recently updated XCode to version 14, you face this error basically when you are trying to use your flutter app in XCode.
Given below is the snippet of the error:
error build: Command PhaseScriptExecution failed with a nonzero exit code
Could not build the precompiled application for the device.“error build: Command PhaseScriptExecution failed with a nonzero exit code” is seen when you upgrade XCode to version 14 and using outdated miscellaneous packages like the flutter package, pubspec and cocoapods. You will have to keep these packages up to date in order to run the application smoothly.
Sometimes there is also a problem in your system which is not supporting the latest version of XCode 14, so you can try to use a simulator to check if the issue is with your own system or code.
To fix “error build: Command PhaseScriptExecution failed with a nonzero exit code”, upgrade miscellaneous packages like the flutter package, pubspec and cocoapods packages. You will have to keep these packages up to date in order to run the application smoothly.
Update all flutter, pubspec and cocoapods packages using commands as flutter upgrade, flutter clean, flutter pub get, sudo gem install cocoapods, rm -rf Pods Podfile.lock and pod install and error would be fixed.
Sometimes there is also a problem in your system which is not supporting the latest version of XCode 14, so you can try to use a simulator to check if the issue is with your own system.
Steps to Fix “error build: Command PhaseScriptExecution failed with a nonzero exit code”:
You can try using a simulator to see whether the issue is with your own system because occasionally there are system issues that prevent your system from supporting the most recent version of Xcode 14.
To do so you will have to change “Excluded Architectures” in your target for your main project.
This should help you fix and understand the problem, “error build: Command PhaseScriptExecution failed with a nonzero exit code “.
Conclusion
You must update your various packages, such as the flutter package, pubspec, and cocoapods, to resolve the issue “error build: Command PhaseScriptExecution failed with a nonzero exit code”.
In order to operate the programme smoothly, you must maintain these packages up to current.