I'm working my way through Stanford's iOS 7 course and I'm stuck at Task 1 on Assignment 4.
I linked two scenes via CTRL + click to a Tab Bar Controller. I'll call them Scene A and Scene B.
If I link Scene A first, the app loads and does what it's supposed to...until I click the tab for Scene B, at which point the app crashes with the following exception:
2014-06-25 13:31:12.255 Matchismo[4976:60b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[NSRegularExpression enumerateMatchesInString:options:range:usingBlock:]: nil argument'
If I link Scene B first, the app crashes out of the gate, despite no compiler errors. Both scenes have a view controller set for them. Scene B's view controller is a subclass of Scene A's view controller.
Where should I be looking for the problem?