XCode is required to compile code

[marxsk]

react-native run-ios should be enough

[marxsk]

http://stackoverflow.com/questions/15463179/how-to-fix-pch-error

After upgrading Xcode I was getting this with multiple projects. Clean Build Folder and Clean had no effect - @sedes answer and @josema.vitaminew 's comment did it for me. But it can be tricky unless you use a bit of cunning, so here's a step by step shortcut: ...