I am having difficulties getting this assignment to run on xCode 4.2.1 and the iPhone simulator.
At first it would get stuck at “Attaching…” and the display of the simulator would remain black.
After closing the project, quitting xCode and the simulator, restarting xCode and running anew, I now get the following error:
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_BNRAppDelegate", referenced from:
objc-class-ref in main.o
And no binary is produced.
Please also note that I created a new blank iOS project and running it also yields the “Attaching” problem.
Please help! This is exasperating and prevents me from continuing my working. Thank you!