Collapse, and a good program, how now Could not load NIB in bundle up

xcode is 4.3.2, sdk is 5
I added a method in a viewcontrollor, and then run the program to prompt
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle:' NSBundle (loaded) 'with name' V0w-hu-0vW-view-dhT-Ch-TnI''


I now put this method to be deleted, or prompt it, how to do?
I use a storyboard, no use xib ah, why this one prompted this ah?
Reply:
Check to see what did not delete Info.plist