presentViewController:在iOS <6(AutoLayout)上崩溃
这是我遇到的怪异崩溃。当我按下转到某个ViewController的按钮时,发生崩溃。它崩溃的行是: DestinationInformationViewController *info = [[DestinationInformationViewController alloc] init]; [info setModalTransitionStyle: UIModalTransitionStyleCrossDissolve]; [self presentViewController:info animated:YES completion: nil]; // CRASHES HERE [info release]; 崩溃跟踪为: *** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: 'Could not instantiate class named NSLayoutConstraint' *** First throw call stack: (0x3758288f 0x35287259 0x37582789 0x375827ab 0x3153d54d 0x3153d6bb 0x3153d423 0x314ce001 0x3143c3c7 …