Malformed or corrupted AST file

Question

I have a problem I don\'t know why did it happen in the first place but most probably because I\'ve pressed move to trash to some system frameworks by mistake.

I got an

Answer 1

As requested:

What caused this error for me (after getting the new Xcode) was I would try to run a project in simulator (accidentally in simulator, I never use simulator), but I'd forget to select my device or my device would become unplugged without me noticing, and it will try to run in simulator... so I would get those classic ".o" file errors... Then I would switch back to my device and get corrupt AST files...

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To CURE the problem... (Follow the steps below VERY closely!!!!!)

1. Clean your project
2. QUIT Xcode (CMD+Q)
3. Run this Terminal Command:
   rm -rf ~/Library/Developer/Xcode/DerivedData/ModuleCache/*
4. Run this Terminal Command:
   rm -rf ~/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/*
5. Reopen Xcode
6. MAKE SURE YOU HAVE YOUR DEVICE SELECTED AND NOT SIMULATOR
7. CLEAN project (Yes, again)
8. THEN build (to your device, not to simulator)...

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Enjoy!

Note: After further experimentation I've found that the force-quitting of xCode is possibly not necessary.