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

1. Restart Xcode - Didn't Work
2. Cleaning the App - Didn't Work
3. Deleting the derivedData - Didn't Work
4. Reset simulator content and settings - Didn't Work
5. changing simulator versions - Didn't Work
6. Restart the OS - Magically Works

I'm not sure which part did the magic and yes it killed a lot of time.