Debugging cocos2d 3rd party library

I am using cocos2d which is a 3rd party library to write a game.  Sometimes I get an assertion error thrown from their framework.

In Xcode is breaks on that assertion error in their source.  In Appcode it basically seems to have no idea about the cocos2d source and breaks in the main method.

Is this just outside of the functionality of AppCode or is there a setting I can add the library into the debug path or something so that Appcode can be used to debug this stuff?