“Could not find any information for class named ViewController”

Question

This bug has been driving me nuts since I started using Xcode (4.6.3). Whenever I try to link a Storyboard item to my code, I get the error:

Could not

Answer 1

As I commented on @ChrisHarrison's answer, those things did not work for me, but deleting the derived data as in I got it to work by deleting the derived data as in https://stackoverflow.com/a/16182672/1449799