Command PhaseScriptExecution failed with a nonzero exit code this is very common issue which iOS Developer face during their development time. Mostly it occurs when you update your Xcode or try to run old code or code from different device.
Command PhaseScriptExecution failed with a nonzero exit code [Solution]
First you need to understand the root cause and what error wants to us. Error is clearly indicating to Script which are there in Build Phase of our Project’s Target.
So First you need to go to Project > Target > Build Phases > Check for Script that your code contains like we have shown below. Then you need to select For install builds only. Also make sure script written does not have any errors.
Conclusion of “Command PhaseScriptExecution failed with a nonzero exit code” Error
Solution of such error can be different for different developers and projects becuase reason can be different like code migration or old code or Xcode upgradation can cause such issues.