Assertion failure: movie player has wrong activation state (1)

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I am playing a video (m4v) in an iPad app on one page, then it goes to a different View Controller which plays another video. It plays fine, but when the second video finishes playing it then throws an Assertion failure.

The error is:

*** Assertion failure in -[MPMoviePlayerControllerNew _moviePlayerDidBecomeActiveNotification:], /SourceCache/MobileMusicPlayer_Sim/MobileMusicPlayer-1137.39/SDK/MPMoviePlayerController.m:1236
*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'movie player <MPMoviePlayerControllerNew: 0x623f6b0> has wrong activation state (1)'
*** Call stack at first throw:
(
0   CoreFoundation                      0x015e35a9 __exceptionPreprocess + 185
1   libobjc.A.dylib                     0x01737313 objc_exception_throw + 44
2   CoreFoundation                      0x0159bef8 +[NSException raise:format:arguments:] + 136
3   Foundation                          0x001ea3bb -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 116
4   MediaPlayer                         0x00522850 -[MPMoviePlayerControllerNew _moviePlayerDidBecomeActiveNotification:] + 204
5   Foundation                          0x00159669 _nsnote_callback + 145
6   CoreFoundation                      0x015bb9f9 __CFXNotificationPost_old + 745
7   CoreFoundation                      0x0153a93a _CFXNotificationPostNotification + 186
8   Foundation                          0x0014f20e -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
9   MediaPlayer                         0x00521e08 -[MPMoviePlayerControllerNew _postNotificationName:object:] + 56
10  MediaPlayer                         0x005293f7 -[MPMoviePlayerControllerNew _ensureActive] + 158
11  MediaPlayer                         0x005242e8 -[MPMoviePlayerControllerNew setControlStyle:] + 45
12  Restore Sensor                      0x00073cfe -[MRSPresentationSlide2 viewDidLoad] + 334
13  UIKit                               0x00958089 -[UIViewController view] + 179
14  Restore Sensor                      0x00071ed8 -[MRSPresentationController pushViewOnScreen:] + 632
15  Restore Sensor                      0x0007395d -[MRSPresentationSlide1 moviePlayBackDidFinish:] + 365
16  Foundation                          0x00159669 _nsnote_callback + 145
17  CoreFoundation                      0x015bb9f9 __CFXNotificationPost_old + 745
18  CoreFoundation                      0x0153a93a _CFXNotificationPostNotification + 186
19  Foundation                          0x0014f20e -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
20  MediaPlayer                         0x00521d24 -[MPMoviePlayerControllerNew _postDidFinishNotificationWithUserInfo:] + 69
21  Foundation                          0x00159669 _nsnote_callback + 145
22  CoreFoundation                      0x015bb9f9 __CFXNotificationPost_old + 745
23  CoreFoundation                      0x0153a93a _CFXNotificationPostNotification + 186
24  Foundation                          0x0014f20e -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
25  MediaPlayer                         0x0053d974 -[MPAVController _itemPlaybackDidEndNotification:] + 491
26  Foundation                          0x00159669 _nsnote_callback + 145
27  CoreFoundation                      0x015bb9f9 __CFXNotificationPost_old + 745
28  CoreFoundation                      0x0153a93a _CFXNotificationPostNotification + 186
29  Foundation                          0x0014f20e -[NSNotificationCenter postNotificationName:object:userInfo:] + 134
30  Celestial                           0x025907a7 -[NSObject(NSObject_AVShared) postNotificationWithDescription:] + 176
31  Celestial                           0x02594a7d -[AVController itemHasFinishedPlayingNotification:] + 169
32  Celestial                           0x025989ca -[AVController fpItemNotification:sender:] + 2177
33  Celestial                           0x025a2a8d -[AVPlaybackItem fpItemNotificationInfo:] + 1473
34  Celestial                           0x02590f51 -[AVObjectRegistry safeInvokeWithDescription:] + 211
35  Foundation                          0x0016e94e __NSThreadPerformPerform + 251
36  CoreFoundation                      0x015c48ff __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 15
37  CoreFoundation                      0x0152288b __CFRunLoopDoSources0 + 571
38  CoreFoundation                      0x01521d86 __CFRunLoopRun + 470
39  CoreFoundation                      0x01521840 CFRunLoopRunSpecific + 208
40  CoreFoundation                      0x01521761 CFRunLoopRunInMode + 97
41  GraphicsServices                    0x0304f1c4 GSEventRunModal + 217
42  GraphicsServices                    0x0304f289 GSEventRun + 115
43  UIKit                               0x008b6c93 UIApplicationMain + 1160
44  Restore Sensor                      0x00002121 main + 177
45  Restore Sensor                      0x00002065 start + 53
)
terminate called throwing an exception

Anyone know why I would be getting this error?

ios
mpmovieplayercontroller
asked on Stack Overflow Jul 20, 2011 by kdbdallas

3 Answers

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I found the problem. The first video was not removing the MPMoviePlayerPlaybackDidFinishNotification notification and so the second video was getting loaded multiple times.

answered on Stack Overflow Jul 20, 2011 by kdbdallas
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If you have multiple MoviePlayers, make sure that you register only on that exact player for notifications. e.g.:

NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
[center addObserver:self
           selector:@selector(moviePlaybackStateChanged:) 
               name:MPMoviePlayerPlaybackDidFinishNotification 
            object:self.movieController];

This makes sure, that you only receive the notifications from the correct player.
That fixed it for me at least.

answered on Stack Overflow Mar 15, 2013 by calimarkus • edited Jul 7, 2014 by calimarkus
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Just Stop the Player Before initialise it Again .

[PlayerName Stop];

answered on Stack Overflow May 16, 2016 by Vikesh Prasad

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