Xcode 4 unit testing linker error

Question

NOTE: \"Use GHUnit\" is not an acceptable answer to this question. I know most think GHUnit is better than the Xcode4 OCUnit, but that\'s not what I\'m asking about. I\'ll evalu

Answer 1

I'm aware that this question is quite old, but I just struggled with identical issue for some time and finally managed to solve it, so let me share what I found.

I've been porting an app from iOS to Mac, the project itself was created for iOS so both the project and main target had iOS in supported platforms. Now, when I started porting I created new target for Mac, and changed supported platforms to OSX only for that target. After that I created another target for unit tests, but forgot to change the supported platforms from iOS to Mac. I think you already should know what the problem was, basically the unit tests target is by default linked with Cocoa framework so since the supported platforms for this target was only iOS the cocoa framework was never built and wasn't properly linked. Changing supported platforms to OSX for the test target fixed the problem.

I'm aware that this may not be very helpful for iOS test targets, but at least go to your test target Link Binary With Libraries section and see if there are any red libraries. This gave me the idea, maybe it will also help some of you.