xCode 4.4 does not get all the .pch file headers imports?

Question

This is my .pch file -

   //
// Prefix header for all source files of the \'English Club\' target in the \'English Club\' project
//

#import 

        

Answer 1

Xcode 5 Update:

You can now delete derived data straight from Xcode Organizer. Delete, clean, and build solved the problem for me.