error: /usr/include/objc/objc-class.h: No such file or directory

Question

I am currently using blocks in my UIButton category. However I have come across this error which I cannot solve:

error: /usr/include/objc/objc-class.h:

Answer 1

Change

#import 

to

#import 

From the blog entry: error: objc/objc-class.h: No such file or directory