I am losing my hair in my attempts to get RestKit to build and work. I get the dreaded \"Lexical or Preprocessor issue: RestKit/RestKit.h file not found\" message. I use Xc
After spending 2 days on this same error and navigating to every possibile google result I finally got it!
It's not due to Derived Data settings, those are fine already in XCode 4.3.2.
The problem is that you are doing a #import "RKObjectMapping.h" or some other include.
Instead use @class RKObjectMapping or if you really nead the .h use
I went with @class since I just need to compile...
Hope this help!