I get a __dyld_dyld_fatal_error
when trying to run my app on an iOS3 device:
dyld: Symbol not found: _OBJC_CLASS_$_NSBlockOperation Referenced from: /var/mobile/Application/.......
Expected in: /System/Library/Frameworks/Foundation.framework/Foundation
My guess is that this is due to the fact that blocks aren't supported in iOS3. However, I'm having trouble tracking down which library is referencing NSBlockOperation. Is there a tool similar to dependency walker, that I can use to figure out which module it is?