Question

I have developed an app that in testing has worked fine but when it has could live I have had some issues with crashes when presenting Modal View Controllers. The issue is in here some where:

NSLog(@"Looks like we made it here 1");

UIViewController *mtaViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"mtaViewController"];
NSLog(@"Looks like we made it here 2");

[mtaViewController setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
NSLog(@"Looks like we made it here 3");

[self presentModalViewController:mtaViewController animated:YES]; 
NSLog(@"Looks like we made it here 4");

and my output to the console is:

2012-06-14 09:26:24.161 appname[2013:707] Looks like we made it here 1
2012-06-14 09:26:24.165 appname[2013:707] Looks like we made it here 2
2012-06-14 09:26:24.166 appname[2013:707] Looks like we made it here 3
2012-06-14 09:26:28.866 appname[2013:707] *** Terminating app due to uncaught exception 'NSRangeException', reason: '*** -[__NSArrayM objectAtIndex:]: index 0 beyond bounds for empty array'
*** First throw call stack:
(0x343ac8bf 0x345fc1e5 0x342f5b6b 0x6d3fd 0x6e719 0x3778e7ff 0x37798d53 0x37798cc1 0x37838339 0x3783714f 0x37891d97 0x7ce1d 0x7cd47 0x3788eaa5 0x3776a81b 0x3776ffb9 0x34ec1ba7 0x36fe0e8d 0x3437f2dd 0x343024dd 0x343023a5 0x30b86fcd 0x37783743 0x84327 0x6b468)
terminate called throwing an exception

I have set up in a function that I call when wanting to change view controllers and as you can see it makes it all the way down to “Looks like we made it here 3” so I suspect that there is an issue with line

[self presentModalViewController:mtaViewController animated:YES];

Can anyone help?

Answer 1

Check any array in mtaViewController, I dont see any array in your code so I’m thinking the issue is within mtaViewController. 🙂