“Cannot find interface declaration for NSObject”?

Question

So I\'ve done some research into this issue, but I haven\'t found anything similar just yet...

So I\'m coding a game in Obj-C using Xcode and Sparrow Framework. I\'v

Answer 1

It sounds like you may have a circular reference in one of your header files.

This can happen when foo.h #imports "bar.h" and bar.h #imports "foo.h" (or sometimes its a chain of three or more header files importing each other in a circle) and it leads to spurious errors like the one you're seeing.

The solution is to try to avoid importing headers in your .h files, and instead use @class references for external classes in the .h files and put the #imports in the .m files instead. So instead of writing:

#import "SomeClass.h"

In your .h files, whenever possible put:

@class SomeClass;

In your .h file, and put the #import statement in your .m file instead.