setValue:forUndefinedKey:]:

xcode modalviewcontroller viewcontroller sigabrt
Szwedo picture Szwedo · Mar 30, 2012 · Viewed 36.5k times · Source 
FinalViewWithSending *newView = [[FinalViewWithSending alloc]initWithNibName:@"FinalViewWithSending" bundle:nil];
newView.modalTransitionStyle = UIModalTransitionStyleFlipHorizontal;
[self presentModalViewController:newView animated:YES]; //it crashes here with a thread 1 error, SIGABRT error..

It says:

"Terminating app due to uncaught exception 'NSUnknownKeyException', 
reason: '[<FinalViewWithSending 0x1bef70> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key loginButton.'"

There is no variable called loginButton so Im not sure why i am getting an error...

Thank you

Answer

Phillip Mills picture Phillip Mills · Mar 31, 2012

You are getting the error because there is no property called loginButton. Check your .xib file. There is almost certainly a bad link to a FinalViewWithSending object (likely File's Owner) that specifies loginButton even though it doesn't exist in the class code.

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