I'm trying to better understand what the stack trace means. I have a two specific questions in this case.
1 - Does this stack trace mean that the method setOutcome: is unrecognized by an instance of a Task object?
2 - Can a method be unrecognized if the parameter passed in does not match the class of the expected parameter?
012-03-30 01:53:57.988 Arbonne[17625:15203] -[Task setOutcome:]: unrecognized selector sent to instance 0x81b6b60
2012-03-30 01:53:58.151 Arbonne[17625:15203] ERROR main [Line 20] Uncaught exception: -[Task setOutcome:]: unrecognized selector sent to instance 0x81b6b60
2012-03-30 01:53:58.154 Arbonne[17625:15203] ERROR main [Line 21] Stack trace: (
0 CoreFoundation 0x01d8903e __exceptionPreprocess + 206
1 libobjc.A.dylib 0x01f1acd6 objc_exception_throw + 44
2 CoreFoundation 0x01d8acbd -[NSObject doesNotRecognizeSelector:] + 253
3 CoreFoundation 0x01cefed0 ___forwarding___ + 432
4 CoreFoundation 0x01cefcb2 _CF_forwarding_prep_0 + 50
5 Arbonne 0x00030d5d -[TaskViewController addTask:] + 237
6 CoreFoundation 0x01d8ae99 -[NSObject performSelector:withObject:withObject:] + 73
7 UIKit 0x0081a14e -[UIApplication sendAction:to:from:forEvent:] + 96
8 UIKit 0x00a58a0e -[UIBarButtonItem(UIInternal) _sendAction:withEvent:] + 145
9 CoreFoundation 0x01d8ae99 -[NSObject performSelector:withObject:withObject:] + 73
10 UIKit 0x0081a14e -[UIApplication sendAction:to:from:forEvent:] + 96
11 UIKit 0x0081a0e6 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 61
12 UIKit 0x008c0ade -[UIControl sendAction:to:forEvent:] + 66
13 UIKit 0x008c0fa7 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 503
14 UIKit 0x008c0266 -[UIControl touchesEnded:withEvent:] + 549
15 UIKit 0x0083f3c0 -[UIWindow _sendTouchesForEvent:] + 513
16 UIKit 0x0083f5e6 -[UIWindow sendEvent:] + 273
17 UIKit 0x00825dc4 -[UIApplication sendEvent:] + 464
18 UIKit 0x00819634 _UIApplicationHandleEvent + 8196
19 GraphicsServices 0x02653ef5 PurpleEventCallback + 1274
20 CoreFoundation 0x01d5d195 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
21 CoreFoundation 0x01cc1ff2 __CFRunLoopDoSource1 + 146
22 CoreFoundation 0x01cc08da __CFRunLoopRun + 2218
23 CoreFoundation 0x01cbfd84 CFRunLoopRunSpecific + 212
24 CoreFoundation 0x01cbfc9b CFRunLoopRunInMode + 123
25 GraphicsServices 0x026527d8 GSEventRunModal + 190
26 GraphicsServices 0x0265288a GSEventRun + 103
27 UIKit 0x00817626 UIApplicationMain + 1163
28 Arbonne 0x0000324f main + 127
29 Arbonne 0x00002c55 start + 53
Yes
No, but you would probably get an unrecognized selector error from within that method once you try to do something with it - e.g. if you are expecting an array and you pass in a string, then try to get an object from your "array", you will get an error at that point.
Related
Alright Everyone,
I've got a real tough nut to crack. I am getting a very strange crash in my iOS app. During the sequence of closing a UIPopoverController by clicking off of it (on an iPad), this crash is occurring.
The really odd thing here is that it is a crash coming out of UIKit. I have filed a radar report for a very similar issue, but Apple marked it as closed and when asked, did not provide any further information than to say it was a duplicate of another issue (which I can not see).
Has anyone seen anything like this before?
EDIT 1: I can't figure out how to make the below a code block, the code block markup tool didn't do it. If anyone could point that out, that would be great :).
Thanks,
~Arash
-[__NSCFString navigationBar]: unrecognized selector sent to instance 0x7be4f510
2015-06-22 11:12:57.375 SpotlightEnterprise[82694:1472906] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString navigationBar]: unrecognized selector sent to instance 0x7be4f510'
*** First throw call stack:
(
0 CoreFoundation 0x0522f746 __exceptionPreprocess + 182
1 libobjc.A.dylib 0x04e10a97 objc_exception_throw + 44
2 CoreFoundation 0x05237705 -[NSObject(NSObject) doesNotRecognizeSelector:] + 277
3 CoreFoundation 0x0517e287 ___forwarding___ + 1047
4 CoreFoundation 0x0517de4e _CF_forwarding_prep_0 + 14
5 UIKit 0x03506810 -[UINavigationItemView _updateLabelColor] + 45
6 UIKit 0x03507df3 -[UINavigationItemButtonView tintColorDidChange] + 86
7 UIKit 0x0377d28b -[_UITintColorVisitor _visitView:] + 363
8 UIKit 0x0377dab1 _UIViewVisitorEntertainVisitors + 98
9 UIKit 0x0377cb09 _UIViewVisitorRecursivelyEntertainDescendingVisitors + 166
10 UIKit 0x0377c859 +[_UIViewVisitor _startTraversalOfVisitor:withView:] + 377
11 UIKit 0x03484df1 -[UIView _receiveVisitor:] + 51
12 UIKit 0x0348a4dd -[UIView _dispatchTintColorVisitorWithReasons:] + 143
13 UIKit 0x0348a922 -[UIView setTintAdjustmentMode:] + 116
14 UIKit 0x03551433 -[UIPresentationController _enableOcclusion:] + 423
15 UIKit 0x035515d0 __55-[UIPresentationController _beginOcclusionIfNecessary:]_block_invoke + 44
16 UIKit 0x03c8208b -[_UIViewControllerTransitionCoordinator _applyBlocks:releaseBlocks:] + 198
17 UIKit 0x03c7e9b9 -[_UIViewControllerTransitionContext __runAlongsideAnimations] + 168
18 UIKit 0x03550f49 __56-[UIPresentationController runTransitionForCurrentState]_block_invoke392 + 67
19 UIKit 0x03481b3e -[UIViewAnimationState _runAlongsideAnimations] + 37
20 UIKit 0x03481182 -[UIViewAnimationState pop] + 36
21 UIKit 0x0347ff6e +[UIViewAnimationState popAnimationState] + 47
22 UIKit 0x0349ec6e +[UIView(UIViewAnimationWithBlocks) _setupAnimationWithDuration:delay:view:options:factory:animations:start:animationStateGenerator:completion:] + 518
23 UIKit 0x0349f017 +[UIView(UIViewAnimationWithBlocks) animateWithDuration:delay:options:animations:completion:] + 110
24 UIKit 0x03813b71 -[_UIPopoverAnimationController animateTransition:] + 384
25 UIKit 0x03550a8c __56-[UIPresentationController runTransitionForCurrentState]_block_invoke + 2315
26 UIKit 0x0358531b __40+[UIViewController _scheduleTransition:]_block_invoke + 18
27 UIKit 0x0343e862 ___afterCACommitHandler_block_invoke + 15
28 UIKit 0x0343e80d _applyBlockToCFArrayCopiedToStack + 415
29 UIKit 0x0343e622 _afterCACommitHandler + 549
30 CoreFoundation 0x0515086e __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
31 CoreFoundation 0x051507b0 __CFRunLoopDoObservers + 400
32 CoreFoundation 0x051461ea __CFRunLoopRun + 1226
33 CoreFoundation 0x05145a5b CFRunLoopRunSpecific + 443
34 CoreFoundation 0x0514588b CFRunLoopRunInMode + 123
35 GraphicsServices 0x05c1a2c9 GSEventRunModal + 192
36 GraphicsServices 0x05c1a106 GSEventRun + 104
37 UIKit 0x03414106 UIApplicationMain + 1526
38 MyAppName 0x000c841d main + 77
39 libdyld.dylib 0x057d5ac9 start + 1</code>
I have a view,which consists a UIScrollView on which subviews would added in viewDidLoad after adding all subviews & after the execution of all custom methods it goes to viewWillappear,after that it crashes with the following traces:
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString CIImage]: unrecognized selector sent to instance 0x7db5bb80'
*** First throw call stack:
(
0 CoreFoundation 0x04614946 __exceptionPreprocess + 182
1 libobjc.A.dylib 0x0429da97 objc_exception_throw + 44
2 CoreFoundation 0x0461c5c5 -[NSObject(NSObject) doesNotRecognizeSelector:] + 277
3 CoreFoundation 0x045653e7 ___forwarding___ + 1047
4 CoreFoundation 0x04564fae _CF_forwarding_prep_0 + 14
5 UIKit 0x02b589f1 -[UIImageView _shouldDrawImage:] + 33
6 UIKit 0x02b58aa2 -[UIImageView _canDrawContent] + 164
7 UIKit 0x02a2f750 -[UIView(Internal) _shouldInheritScreenScaleAsContentScaleFactor] + 83
8 UIKit 0x02a2f7e9 -[UIView(Internal) _applyScreenScaleToContentScaleFactorIfNotSpecifiedByDeveloper] + 35
9 UIKit 0x02a2f56e -[UIView(Internal) _didMoveFromWindow:toWindow:] + 1628
10 UIKit 0x02b5d762 -[UIImageView _didMoveFromWindow:toWindow:] + 65
11 UIKit 0x02a2f23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
12 UIKit 0x02a423e1 -[UIScrollView _didMoveFromWindow:toWindow:] + 65
13 UIKit 0x02a2f23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
14 UIKit 0x02a2f23f -[UIView(Internal) _didMoveFromWindow:toWindow:] + 813
15 UIKit 0x02a26517 __45-[UIView(Hierarchy) _postMovedFromSuperview:]_block_invoke + 154
16 UIKit 0x02a26475 -[UIView(Hierarchy) _postMovedFromSuperview:] + 458
17 UIKit 0x02a31f0d -[UIView(Internal) _addSubview:positioned:relativeTo:] + 2018
18 UIKit 0x02a2486e -[UIView(Hierarchy) addSubview:] + 56
19 UIKit 0x0299d0fa __53-[_UINavigationParallaxTransition animateTransition:]_block_invoke + 1849
20 UIKit 0x02a2b7af +[UIView(Animation) performWithoutAnimation:] + 82
21 UIKit 0x0299c5a6 -[_UINavigationParallaxTransition animateTransition:] + 1204
22 UIKit 0x02b2b64d -[UINavigationController _startCustomTransition:] + 3765
23 UIKit 0x02b38726 -[UINavigationController _startDeferredTransitionIfNeeded:] + 712
24 UIKit 0x02b39372 -[UINavigationController __viewWillLayoutSubviews] + 57
25 UIKit 0x02cad04c -[UILayoutContainerView layoutSubviews] + 213
26 UIKit 0x02a34dd1 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 608
27 libobjc.A.dylib 0x042b3771 -[NSObject performSelector:withObject:] + 70
28 QuartzCore 0x0215928f -[CALayer layoutSublayers] + 152
29 QuartzCore 0x0214d115 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 397
30 QuartzCore 0x0214cf70 _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 26
31 QuartzCore 0x020ab3c6 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 284
32 QuartzCore 0x020ac78c _ZN2CA11Transaction6commitEv + 392
33 QuartzCore 0x020ace58 _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 92
34 CoreFoundation 0x045379de __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 30
35 CoreFoundation 0x04537920 __CFRunLoopDoObservers + 400
36 CoreFoundation 0x0452d35a __CFRunLoopRun + 1226
37 CoreFoundation 0x0452cbcb CFRunLoopRunSpecific + 443
38 CoreFoundation 0x0452c9fb CFRunLoopRunInMode + 123
39 GraphicsServices 0x05e6b24f GSEventRunModal + 192
40 GraphicsServices 0x05e6b08c GSEventRun + 104
41 UIKit 0x029a98b6 UIApplicationMain + 1526
42 POPCorn 0x000e9472 main + 130
43 libdyld.dylib 0x06193ac9 start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFString CIImage]: unrecognized selector sent to instance 0x7db5bb80'
You're accessing the CIImage property of an NSString (perhaps its id and you just accessed this property thinking that the id object was a UIImage). Search for CIImage in your class and make sure the object you're getting the property from is an actual UIImage.
If you want to find out where the actual line of code that is causing i suggest creating an exception breakpoint. You can do this by going to the breakpoints tab and adding one for all exceptions. This along with the log you should see what you are passing an invalid argument to.
I'm calling methods dynamically by name. this is the code I'm using:
NSString *methodName=[NSString stringWithFormat:#"%#HintButton",stringForPredicate];
SEL s = NSSelectorFromString(methodName);
[self performSelector:s withObject:hItem];
I Checked and s value is
AnotherSoundHintButton
I have the following method in my code:
- (void )AnotherSoundHintButton:(HintItem*) hItem {
[self PlaySound:hItem.hint];
}
but when I run my app I'm getting the following error:
2013-05-29 12:18:39.945 Game[19668:c07] -[SoundViewController AnotherSoundHintButton]: unrecognized selector sent to instance 0x8c60e90
2013-05-29 12:18:39.946 Game[19668:c07] Uncaught exception: -[SoundViewController AnotherSoundHintButton]: unrecognized selector sent to instance 0x8c60e90
2013-05-29 12:18:39.947 Game[19668:c07] Stack trace: (
0 CoreFoundation 0x01c4202e __exceptionPreprocess + 206
1 libobjc.A.dylib 0x019b5e7e objc_exception_throw + 44
2 CoreFoundation 0x01ccd4bd -[NSObject(NSObject) doesNotRecognizeSelector:] + 253
3 CoreFoundation 0x01c31bbc ___forwarding___ + 588
4 CoreFoundation 0x01c3194e _CF_forwarding_prep_0 + 14
5 libobjc.A.dylib 0x019c96b0 -[NSObject performSelector:withObject:] + 70
6 Game 0x00008ab9 -[SoundViewController alertView:clickedButtonAtIndex:] + 969
7 UIKit 0x00ced0bc -[UIAlertView(Private) _buttonClicked:] + 294
8 libobjc.A.dylib 0x019c9705 -[NSObject performSelector:withObject:withObject:] + 77
9 UIKit 0x008fd2c0 -[UIApplication sendAction:to:from:forEvent:] + 96
10 UIKit 0x008fd258 -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 61
11 UIKit 0x009be021 -[UIControl sendAction:to:forEvent:] + 66
12 UIKit 0x009be57f -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 578
13 UIKit 0x009bd6e8 -[UIControl touchesEnded:withEvent:] + 546
14 UIKit 0x0092ccef -[UIWindow _sendTouchesForEvent:] + 846
15 UIKit 0x0092cf02 -[UIWindow sendEvent:] + 273
16 UIKit 0x0090ad4a -[UIApplication sendEvent:] + 436
17 UIKit 0x008fc698 _UIApplicationHandleEvent + 9874
18 GraphicsServices 0x02ab8df9 _PurpleEventCallback + 339
19 GraphicsServices 0x02ab8ad0 PurpleEventCallback + 46
20 CoreFoundation 0x01bb7bf5 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 53
21 CoreFoundation 0x01bb7962 __CFRunLoopDoSource1 + 146
22 CoreFoundation 0x01be8bb6 __CFRunLoopRun + 2118
23 CoreFoundation 0x01be7f44 CFRunLoopRunSpecific + 276
24 CoreFoundation 0x01be7e1b CFRunLoopRunInMode + 123
25 GraphicsServices 0x02ab77e3 GSEventRunModal + 88
26 GraphicsServices 0x02ab7668 GSEventRun + 104
27 UIKit 0x008f9ffc UIApplicationMain + 1211
28 Game 0x00002724 main + 164
29 Game 0x00002635 start + 53
)
Try this :
NSString *methodName=[NSString stringWithFormat:#"%#HintButton:",stringForPredicate];
The colon after "HintButton" is important.
add column(:) after AnotherSoundHintButton
AnotherSoundHintButton:
I am testing my app out, pushing it pretty hard, and I'm getting it to crash (black screen, image doesn't save, drops back to springboard). However, I get no crash reports logged in the console. When I test using profiler all I get is a message saying the target died, but it gives no clues.
In the organiser I got the device crash logs which gives me this which I believe is telling me I'm sending a message to something I've released (objc-msgSend + 22)? Am I on the right track here?
---
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: KERN_INVALID_ADDRESS at 0x576e6f69
Crashed Thread: 0
Thread 0 name: Dispatch queue: com.apple.main-thread
Thread 0 Crashed:
0 libobjc.A.dylib 0x34f8ef7e objc_msgSend + 22
1 CoreFoundation 0x371d7e90 CFRetain + 76
2 CoreFoundation 0x371e1b74 +[__NSArrayI __new::] + 48
3 CoreFoundation 0x371e1a8e -[__NSPlaceholderArray initWithObjects:count:] + 294
4 CoreFoundation 0x371e9394 -[NSArray initWithArray:range:copyItems:] + 756
5 CoreFoundation 0x371fcd5a +[NSArray arrayWithArray:] + 66
6 AVFoundation 0x335da766 -[AVCaptureSession outputs] + 146
7 AVFoundation 0x335de26e -[AVCaptureSession _doDidStop:] + 38
8 AVFoundation 0x335dfaea -[AVCaptureSession _handleNotification:payload:] + 2002
9 AVFoundation 0x335d8af6 avcaptureSessionFigRecorderNotification + 1202
10 AVFoundation 0x335fafd8 AVCMNotificationDispatcherCallback + 184
11 CoreFoundation 0x3725b7c8 __CFNotificationCenterAddObserver_block_invoke_0 + 116
12 CoreFoundation 0x3725b540 ___CFXNotificationPost_block_invoke_0 + 64
13 CoreFoundation 0x371e7090 _CFXNotificationPost + 1400
14 CoreFoundation 0x371ef1c6 CFNotificationCenterPostNotification + 102
15 CoreMedia 0x366eeeb0 CMNotificationCenterPostNotification + 112
16 Celestial 0x374b08a2 FigRecorderRemoteCallbacksServer_NotificationIsPending + 478
17 Celestial 0x374b06ba _XNotificationIsPending + 54
18 Celestial 0x374b0678 figrecordercallbacks_server + 92
19 Celestial 0x374af642 remrec_ClientPortCallBack + 146
20 CoreFoundation 0x37258f0c __CFMachPortPerform + 356
21 CoreFoundation 0x3726351c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
22 CoreFoundation 0x372634be __CFRunLoopDoSource1 + 134
23 CoreFoundation 0x3726230c __CFRunLoopRun + 1364
24 CoreFoundation 0x371e549e CFRunLoopRunSpecific + 294
25 CoreFoundation 0x371e5366 CFRunLoopRunInMode + 98
26 AVFoundation 0x335ef4d0 -[AVRunLoopCondition _waitInMode:untilDate:] + 348
27 AVFoundation 0x335ef36c -[AVRunLoopCondition waitUntilDate:inMode:] + 20
28 AVFoundation 0x335dc13a -[AVCaptureSession _stopPreviewing] + 438
29 AVFoundation 0x335dc2d6 -[AVCaptureSession _setRunning:] + 166
30 AVFoundation 0x335dbe42 -[AVCaptureSession stopRunning] + 274
31 zApp 0x0007e1ce 0x79000 + 20942
32 UIKit 0x30fa5b8e -[UIViewController _setViewAppearState:isAnimating:] + 138
33 UIKit 0x30fff8a8 -[UIViewController beginAppearanceTransition:animated:] + 184
34 UIKit 0x310468be -[UIWindowController transition:fromViewController:toViewController:target:didEndSelector:] + 4098
35 UIKit 0x31045360 -[UIViewController presentViewController:withTransition:completion:] + 3116
36 UIKit 0x310a06a0 -[UIViewController presentModalViewController:animated:] + 24
37 CoreFoundation 0x371e93f6 -[NSObject performSelector:withObject:withObject:] + 46
38 UIKit 0x30f7ee00 -[UIApplication sendAction:to:from:forEvent:] + 56
39 UIKit 0x30f7edbc -[UIApplication sendAction:toTarget:fromSender:forEvent:] + 24
40 UIKit 0x30f7ed9a -[UIControl sendAction:to:forEvent:] + 38
41 UIKit 0x30f7eb0a -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 486
42 UIKit 0x30f7f442 -[UIControl touchesEnded:withEvent:] + 470
43 UIKit 0x30f7d924 -[UIWindow _sendTouchesForEvent:] + 312
44 UIKit 0x30f7d312 -[UIWindow sendEvent:] + 374
45 UIKit 0x30f6368e -[UIApplication sendEvent:] + 350
46 UIKit 0x30f62f34 _UIApplicationHandleEvent + 5820
47 GraphicsServices 0x339a5224 PurpleEventCallback + 876
48 CoreFoundation 0x3726351c __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 32
49 CoreFoundation 0x372634be __CFRunLoopDoSource1 + 134
50 CoreFoundation 0x3726230c __CFRunLoopRun + 1364
51 CoreFoundation 0x371e549e CFRunLoopRunSpecific + 294
52 CoreFoundation 0x371e5366 CFRunLoopRunInMode + 98
53 GraphicsServices 0x339a4432 GSEventRunModal + 130
54 UIKit 0x30f91cce UIApplicationMain + 1074
55 zApp 0x0007ffa6 0x79000 + 28582
56 zApp 0x0007a680 0x79000 + 5760
If you suspect that you are overreleasing something, try running your app with NSZombie enabled. (how to enable NSZombie)
You can set exception breakpoint to print backtrace in console.
sometimes that happens when you set an object as an observer for notifications, like
[[NSNotificationCenter defaultCenter] addObserver //details
and don't remove it from the observers list when it's released.
the system tries to send a message to it, and the app crashes because it's not there.
try adding
[[NSNotificationCenter defaultCenter] removeObserver:self];
in the dealloc function. (even if you're working with arc, create a dealloc function, and write that in it).
good luck
2011-04-20 18:38:41.347 RIE[1683:607] -[UICGColor _shouldContinuePlaybackInBackground]: unrecognized selector sent to instance 0x28db10
2011-04-20 18:38:41.417 RIE[1683:607] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UICGColor _shouldContinuePlaybackInBackground]: unrecognized selector sent to instance 0x28db10'
*** Call stack at first throw:
(
0 CoreFoundation 0x342ed64f __exceptionPreprocess + 114
1 libobjc.A.dylib 0x35570c5d objc_exception_throw + 24
2 CoreFoundation 0x342f11bf -[NSObject(NSObject) doesNotRecognizeSelector:] + 102
3 CoreFoundation 0x342f0649 ___forwarding___ + 508
4 CoreFoundation 0x34267180 _CF_forwarding_prep_0 + 48
5 MediaPlayer 0x344628b7 -[MPMoviePlayerViewController _moviePlayerViewController_applicationDidEnterBackgroundNotification:] + 42
6 Foundation 0x333b5183 _nsnote_callback + 142
7 CoreFoundation 0x342bc20f __CFXNotificationPost_old + 402
8 CoreFoundation 0x34256eeb _CFXNotificationPostNotification + 118
9 Foundation 0x333b25d3 -[NSNotificationCenter postNotificationName:object:userInfo:] + 70
10 UIKit 0x36364d01 -[UIApplication _handleApplicationSuspend:eventInfo:] + 500
11 UIKit 0x362feaf9 -[UIApplication handleEvent:withNewEvent:] + 1916
12 UIKit 0x362fe215 -[UIApplication sendEvent:] + 44
13 UIKit 0x362fdc53 _UIApplicationHandleEvent + 5090
14 GraphicsServices 0x33e58e77 PurpleEventCallback + 666
15 CoreFoundation 0x342c4a97 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 26
16 CoreFoundation 0x342c683f __CFRunLoopDoSource1 + 166
17 CoreFoundation 0x342c760d __CFRunLoopRun + 520
18 CoreFoundation 0x34257ec3 CFRunLoopRunSpecific + 230
19 CoreFoundation 0x34257dcb CFRunLoopRunInMode + 58
20 GraphicsServices 0x33e5841f GSEventRunModal + 114
21 GraphicsServices 0x33e584cb GSEventRun + 62
22 UIKit 0x36328d69 -[UIApplication _run] + 404
23 UIKit 0x36326807 UIApplicationMain + 670
24 Motor Show 0x0000219b main + 70
25 Motor Show 0x00002150 start + 40
)
terminate called after throwing an instance of 'NSException'
Program received signal: “SIGABRT”.
Hard to say given just the stack trace, but I would suggest the following:
Implement applicationWillResignActive: in your UIApplicationDelegate to ensure that video playback is paused or stopped before the application enters the background.
Create a custom UIApplication subclass to use in your app, and override the _handleApplicationSuspend:eventInfo: method so that it returns without propagating the event to other classes further down the chain.
Figure out how to unregister your MPMoviePlayerViewController component from the notification center so that it does not receive the 'ApplicationDidEnterBackgroundNotification'.