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I get an error
2014-10-18 12:07:34.400 soundtest[17081:818922] *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<soundtest.ViewControllerTwo 0x7f92f1f20090> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key sfdfa.'
*** First throw call stack:
(
0 CoreFoundation 0x00000001067813f5 __exceptionPreprocess + 165
1 libobjc.A.dylib 0x00000001082afbb7 objc_exception_throw + 45
2 CoreFoundation 0x0000000106781039 -[NSException raise] + 9
3 Foundation 0x0000000106b984d3 -[NSObject(NSKeyValueCoding) setValue:forKey:] + 259
4 CoreFoundation 0x00000001066cb400 -[NSArray makeObjectsPerformSelector:] + 224
5 UIKit 0x00000001072ce97d -[UINib instantiateWithOwner:options:] + 1506
6 UIKit 0x000000010712f698 -[UIViewController _loadViewFromNibNamed:bundle:] + 242
7 UIKit 0x000000010712fc88 -[UIViewController loadView] + 109
8 UIKit 0x000000010712fef9 -[UIViewController loadViewIfRequired] + 75
9 UIKit 0x000000010713038e -[UIViewController view] + 27
10 UIKit 0x00000001076cd83f -[_UIFullscreenPresentationController _setPresentedViewController:] + 65
11 UIKit 0x000000010710bc49 -[UIPresentationController initWithPresentedViewController:presentingViewController:] + 105
12 UIKit 0x000000010713c121 -[UIViewController _presentViewController:withAnimationController:completion:] + 1746
13 UIKit 0x000000010713e461 __62-[UIViewController presentViewController:animated:completion:]_block_invoke + 132
14 UIKit 0x000000010713e385 -[UIViewController presentViewController:animated:completion:] + 229
15 UIKit 0x00000001073bb9d6 _UIGestureRecognizerSendActions + 262
16 UIKit 0x00000001073ba679 -[UIGestureRecognizer _updateGestureWithEvent:buttonEvent:] + 532
17 UIKit 0x00000001073bf296 ___UIGestureRecognizerUpdate_block_invoke662 + 51
18 UIKit 0x00000001073bf192 _UIGestureRecognizerRemoveObjectsFromArrayAndApplyBlocks + 254
19 UIKit 0x00000001073b520d _UIGestureRecognizerUpdate + 2796
20 UIKit 0x00000001070520a6 -[UIWindow _sendGesturesForEvent:] + 1041
21 UIKit 0x0000000107052cd3 -[UIWindow sendEvent:] + 667
22 UIKit 0x000000010701fae1 -[UIApplication sendEvent:] + 246
23 UIKit 0x000000010702cbad _UIApplicationHandleEventFromQueueEvent + 17370
24 UIKit 0x0000000107008233 _UIApplicationHandleEventQueue + 1961
25 CoreFoundation 0x00000001066b6ad1 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17
26 CoreFoundation 0x00000001066ac99d __CFRunLoopDoSources0 + 269
27 CoreFoundation 0x00000001066abfd4 __CFRunLoopRun + 868
28 CoreFoundation 0x00000001066aba06 CFRunLoopRunSpecific + 470
29 GraphicsServices 0x000000010a1699f0 GSEventRunModal + 161
30 UIKit 0x000000010700b550 UIApplicationMain + 1282
31 soundtest 0x000000010624503e top_level_code + 78
32 soundtest 0x000000010624507a main + 42
33 libdyld.dylib 0x000000010ae4a145 start + 1
34 ??? 0x0000000000000001 0x0 + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)when trying to swipe right, which is a gesture that I added for it to go to the next Page(View Controller Two) it crashes and shows this error report. How to fix the libc++abi.dylib: terminating with uncaught exception of type nsexception (lldb) error? Please give me some advice.
The cause: You perhaps already set the OS_ACTIVITY_MODE variable .
Solution: If you noticed you set the OS_ACTIVITY_MODE variable, let’s turn it off by doing these following steps:
1) From Xcode menu: Product -> Scheme -> Edit Scheme..
2) Run scheme and look under Arguments
Remove OS_ACTIVITY_MODE if you see the OS_ACTIVITY_MODE variable selected.
The cause: This error happened on Xcode 7, and I didn’t have outlets with yellow flags that I could delete.
Solution: Replacing this line in the AppDelegate:
to