My new iPhone app loads but then it crashes right away, in the console I get this reason:
reason: '[<MyViewController 0x6939d60> setValue:forUndefinedKey:]:this class is not key value coding-compliant for the key delegate.'
Stack:
*** Call stack at first throw:
(
0 CoreFoundation 0x0273cb99 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x0288c40e objc_exception_throw + 47
2 CoreFoundation 0x0273cad1 -[NSException raise] + 17
3 Foundation 0x000310f3 _NSSetUsingKeyValueSetter + 135
4 Foundation 0x00031061 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 285
5 UIKit 0x004af70a -[UIRuntimeOutletConnection connect] + 112
6 CoreFoundation 0x026b2d0f -[NSArray makeObjectsPerformSelector:] + 239
7 UIKit 0x004ae121 -[UINib instantiateWithOwner:options:] + 1041
8 UIKit 0x004afeb5 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168
9 UIKit 0x0036595f -[UIViewController _loadViewFromNibNamed:bundle:] + 70
10 UIKit 0x00363675 -[UIViewController loadView] + 120
11 UIKit 0x0036354f -[UIViewController view] + 56
12 HalloweenNoise 0x0000238d -[MyAppDelegate application:didFinishLaunchingWithOptions:] + 74
13 UIKit 0x002b9f27 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
14 UIKit 0x002bc3b0 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 346
15 UIKit 0x002c63ec -[UIApplication handleEvent:withNewEvent:] + 1958
16 UIKit 0x002beb3c -[UIApplication sendEvent:] + 71
17 UIKit 0x002c39bf _UIApplicationHandleEvent + 7672
18 GraphicsServices 0x0301c822 PurpleEventCallback + 1550
19 CoreFoundation 0x0271dff4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
20 CoreFoundation 0x0267e807 __CFRunLoopDoSource1 + 215
21 CoreFoundation 0x0267ba93 __CFRunLoopRun + 979
22 CoreFoundation 0x0267b350 CFRunLoopRunSpecific + 208
23 CoreFoundation 0x0267b271 CFRunLoopRunInMode + 97
24 UIKit 0x002bbc6d -[UIApplication _run] + 625
25 UIKit 0x002c7af2 UIApplicationMain + 1160
26 My 0x00002320 main + 102
27 My 0x000022b1 start + 53
Here’s my IBOutlet References (I think):
@property (nonatomic, retain) IBOutlet UIWindow *window;
@property (nonatomic, retain) IBOutlet MyViewController *viewController;
What does this error mean?
Open up your XIB in IB and look at the MyViewController’s links. There will be an inbound link to “delegate” that you need to delete.