Why am I getting ibtool failed with exit code 255?

Question

All of a sudden I can\'t build my project. I get the following compiler error:

/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.pl

Answer 1

I was also facing the same issue in Xcode 8. Deleting the Derived data fixed my issue.

1. Go to Folder ~/Library/Developer/Xcode/DerivedData/ and clear the folders within that
2. Restart Xcode and Simulator and Run Your project....!