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我在这条线上有这个错误“Thread 1: Program received signal: 'SIGABRT'”...
[window addSubview:viewController.view];
这是什么意思？？
错误信息如下:
2011-11-10 10:01:08.334 Paint Brush[1624:207] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<Paint_BrushViewController 0x4b1b1d0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key clear.'
*** Call stack at first throw:
(
0 CoreFoundation 0x00dc25a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f16313 objc_exception_throw + 44
2 CoreFoundation 0x00dc24e1 -[NSException raise] + 17
3 Foundation 0x00794677 _NSSetUsingKeyValueSetter + 135
4 Foundation 0x007945e5 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 285
5 UIKit 0x0021030c -[UIRuntimeOutletConnection connect] + 112
6 CoreFoundation 0x00d388cf -[NSArray makeObjectsPerformSelector:] + 239
7 UIKit 0x0020ed23 -[UINib instantiateWithOwner:options:] + 1041
8 UIKit 0x00210ab7 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168
9 UIKit 0x000c6628 -[UIViewController _loadViewFromNibNamed:bundle:] + 70
10 UIKit 0x000c4134 -[UIViewController loadView] + 120
11 UIKit 0x000c400e -[UIViewController view] + 56
12 Paint Brush 0x000024ae -[Paint_BrushAppDelegate application:didFinishLaunchingWithOptions:] + 94
13 UIKit 0x00014c89 -[UIApplication _callInitializationDelegatesForURL:payload:suspended:] + 1163
14 UIKit 0x00016d88 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 439
15 UIKit 0x00021617 -[UIApplication handleEvent:withNewEvent:] + 1533
16 UIKit 0x00019abf -[UIApplication sendEvent:] + 71
17 UIKit 0x0001ef2e _UIApplicationHandleEvent + 7576
18 GraphicsServices 0x00ffb992 PurpleEventCallback + 1550
19 CoreFoundation 0x00da3944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
20 CoreFoundation 0x00d03cf7 __CFRunLoopDoSource1 + 215
21 CoreFoundation 0x00d00f83 __CFRunLoopRun + 979
22 CoreFoundation 0x00d00840 CFRunLoopRunSpecific + 208
23 CoreFoundation 0x00d00761 CFRunLoopRunInMode + 97
24 UIKit 0x000167d2 -[UIApplication _run] + 623
25 UIKit 0x00022c93 UIApplicationMain + 1160
26 Paint Brush 0x00002419 main + 121
27 Paint Brush 0x00002395 start + 53
)
terminate called after throwing an instance of 'NSException'