SIGABRT when accessing UIViewController - iphone

Question

I'm used to loading ViewControllers from storyboard files or xib files, so when I first tried to load one in code:
UIStoryboard *storyboard = self.storyboard;
ProfileViewController *profViewController = [storyboard instantiateViewControllerWithIdentifier:#"ProfileView"];
NSLog(#"Self View Frame: %#", NSStringFromCGSize(self.view.frame.size));
NSLog(#"ProfViewCont Frame: %#", NSStringFromCGSize(profViewController.view.frame.size));
I got the following error:
* Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '* -[NSPlaceholderMutableString initWithString:]: nil argument'
What do I need to do differently assuming that my storyboard xib is loaded properly? Here is the viewDidLoad:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// add subviews
self.view.backgroundColor = [UIColor clearColor];
self.view.opaque = YES;
[UIView beginAnimations:nil context:nil];
[self.view setFrame:CGRectMake(0, 480, 320, 480)];
[UIView setAnimationDuration:0.75f];
[self.view setFrame:CGRectMake(0, 0, 320, 480)];
[UIView commitAnimations];
// Sort stat bars top to bottom (HP == 0):
statBars = [statBars
sortedArrayUsingComparator:^NSComparisonResult(id label1, id label2)
{
if ([label1 frame].origin.y < [label2 frame].origin.y)
return NSOrderedAscending;
else
return NSOrderedDescending;
}];
// Sort types left to right:
types = [types
sortedArrayUsingComparator:^NSComparisonResult(id label1, id label2)
{
if ([label1 frame].origin.x < [label2 frame].origin.x)
return NSOrderedAscending;
else
return NSOrderedDescending;
}];
[self displayInfo:currentIndex];
}
Thanks for your help!

Answer 1

Never mind, it turns out the error was in [self displayInfo:currentIndex] the last line in ViewDidLoad. I mistakenly thought that viewDidLoad was safely called when the ViewController was instantiated. It turns it is called much later, when I called self.view.
<_< lazy initialization, huh?

Answer 2

Check your ProfileViewController xib , you must have connected some wrong outlet to the file owner