NSInternalInconsistencyException: Asset (67) has too many attributes to treat as a single bitfield

Question

Whenever I attempt to save an image to the Photo Library I get the following crash:

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Asset (67) has too many at
tributes to treat as a single bitfield'

However, it doesn't happen immediately. It happens in a background thread after the image has already been saved.

[[PHPhotoLibrary sharedPhotoLibrary] performChanges:^{
        [PHAssetChangeRequest creationRequestForAssetFromImage:image];
    } completionHandler:^(BOOL success, NSError *error) {
        if (error) {
            NSLog(@"Error saving photo to camera roll: %@", error);
        } else {
            NSLog(@"Saved photo to camera roll");
        }
    }];

So I get a log of "Saved photo to camera roll" and then the app crashes. The exception always occurs in a background queue called "com.apple.photos.persistentHistoryChangeDistributor.managedObjectContext". And this happens 100% of the time I attempt to save an image but I can't reproduce this with another project.

Thoughts on why this might be occuring?

PhotoKit

4.3k

Posted by

jeremychefsfeed

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Answer 1

I'm getting a similar error but it's occurring entirely on a background thread. It seems to somehow be triggered after a call to

PHFetchResult* photosResult = [PHAsset fetchAssetsWithMediaType:PHAssetMediaTypeImage options:options];

The strange thing is that it's also reporting an error on Asset(67) for me too. Or maybe 67 is just an internal error code? Either way, I have no idea how to debug this or fix it. None of my code is in the call stack for the thread that this crash occurs on.

Posted by

cheesemaker

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Answer 2

I'm still having this issue. Any update from your end?

Posted by

jeremychefsfeed

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Answer 3

Unfortunately, no, although I've narrowed it down somewhat. I've removed all the extra code and have simply this:

- (UICollectionViewCell *) collectionView:(UICollectionView *)inCollectionView cellForItemAtIndexPath:(NSIndexPath *)inIndexPath
{
  PHImageManager* manager = [PHImageManager defaultManager];
  SLPhotoCell* photo_cell = [inCollectionView dequeueReusableCellWithReuseIdentifier:@"PhotoCell" forIndexPath:inIndexPath];
  PHAsset* asset = [self.messages objectAtIndex:inIndexPath.row];

  [manager requestImageForAsset:asset targetSize:photo_cell.bounds.size contentMode:PHImageContentModeAspectFill options:nil resultHandler:^(UIImage * _Nullable result, NSDictionary * _Nullable info)
  {
  [photo_cell.thumbnailView setImage:result];
  }];

  return photo_cell;
}

This is the complete callstack of the crashed thread:

*** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Asset (67) has too many attributes to treat as a single bitfield'
*** First throw call stack:
(
  0   CoreFoundation                      0x000000010bc7a29b __exceptionPreprocess + 331
  1   libobjc.A.dylib                     0x000000010b216735 objc_exception_throw + 48
  2   CoreFoundation                      0x000000010bc7a022 +[NSException raise:format:arguments:] + 98
  3   Foundation                          0x000000010a45db47 -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 194
  4   PhotoLibraryServices                0x0000000120ad8286 __56+[PLManagedObjectContext __prepareEntityPropertyLookups]_block_invoke_2 + 989
  5   CoreFoundation                      0x000000010bd14544 __NSDictionaryEnumerate + 532
  6   PhotoLibraryServices                0x0000000120ad7e43 __56+[PLManagedObjectContext __prepareEntityPropertyLookups]_block_invoke + 302
  7   AssetsLibraryServices               0x000000012136f799 __pl_dispatch_once_block_invoke + 25
  8   libdispatch.dylib                   0x000000010f06c63e _dispatch_client_callout + 8
  9   libdispatch.dylib                   0x000000010f06e100 _dispatch_once_callout + 66
  10  AssetsLibraryServices               0x000000012136f77e pl_dispatch_once + 75
  11  PhotoLibraryServices                0x0000000120ad7d0f +[PLManagedObjectContext __prepareEntityPropertyLookups] + 76
  12  PhotoLibraryServices                0x0000000120ad8733 +[PLManagedObjectContext _indexesByAttributeNamesByEntityNames] + 17
  13  PhotoLibraryServices                0x0000000120ad89ed +[PLManagedObjectContext indexValueForAttributeNames:entity:] + 37
  14  PhotoLibraryServices                0x0000000120ad8fb1 +[PLManagedObjectContext recordChangedKeys:forObjectID:inAttributesByOID:relationshipsByOID:] + 169
  15  PhotoLibraryServices                0x0000000120a8119a -[PLLocalChangeEventBuilder _recordUpdateChange:] + 479
  16  PhotoLibraryServices                0x0000000120a80ec4 -[PLLocalChangeEventBuilder recordChange:] + 332
  17  PhotoLibraryServices                0x0000000120a80b1c -[PLLocalChangeEventBuilder recordTransaction:] + 514
  18  CoreData                            0x0000000115ec72d1 developerSubmittedBlockToNSManagedObjectContextPerform + 161
  19  libdispatch.dylib                   0x000000010f06c63e _dispatch_client_callout + 8
  20  libdispatch.dylib                   0x000000010f07ab31 _dispatch_sync_invoke_and_complete_recurse + 136
  21  libdispatch.dylib                   0x000000010f07a476 _dispatch_sync_f_slow + 305
  22  CoreData                            0x0000000115ec71de -[NSManagedObjectContext performBlockAndWait:] + 286
  23  PhotoLibraryServices                0x0000000120a8083f __63-[PLLocalChangeEventBuilder recordAllTransactionsFromIterator:]_block_invoke.38 + 152
  24  PhotoLibraryServices                0x0000000120b85b42 -[PLPersistentHistoryTransactionIterator _enumerateOneTransactionWithBlock:] + 230
  25  PhotoLibraryServices                0x0000000120b85a01 -[PLPersistentHistoryTransactionIterator enumerateRemainingTransactionsWithBlock:] + 121
  26  PhotoLibraryServices                0x0000000120a806f6 -[PLLocalChangeEventBuilder recordAllTransactionsFromIterator:] + 316
  27  PhotoLibraryServices                0x0000000120c76088 __67-[PLPersistentHistoryChangeDistributor localEventFromTransactions:]_block_invoke + 82
  28  PhotoLibraryServices                0x0000000120a8000e __56+[PLLocalChangeEventBuilder localEventWithBuilderBlock:]_block_invoke + 63
  29  AssetsLibraryServices               0x00000001213701b6 pl_result_with_autoreleasepool + 27
  30  PhotoLibraryServices                0x0000000120a7ffa0 +[PLLocalChangeEventBuilder localEventWithBuilderBlock:] + 92
  31  PhotoLibraryServices                0x0000000120c76005 -[PLPersistentHistoryChangeDistributor localEventFromTransactions:] + 115
  32  PhotoLibraryServices                0x0000000120c759d1 -[PLPersistentHistoryChangeDistributor distributeTransactions:] + 89
  33  PhotoLibraryServices                0x0000000120c7522f -[PLPersistentHistoryChangeDistributor distributeNewTransactionsSinceLastToken] + 191
  34  PhotoLibraryServices                0x0000000120c7507c __78-[PLPersistentHistoryChangeDistributor _inq_startObservingRemoteNotifications]_block_invoke.26 + 34
  35  AssetsLibraryServices               0x000000012136fdb6 __pl_notify_register_dispatch_block_invoke + 34
  36  libsystem_notify.dylib              0x000000010f33da10 notify_register_mach_port + 7700
  37  libdispatch.dylib                   0x000000010f07a082 _dispatch_block_async_invoke2 + 83
  38  libdispatch.dylib                   0x000000010f06c63e _dispatch_client_callout + 8
  39  libdispatch.dylib                   0x000000010f073b47 _dispatch_lane_serial_drain + 791
  40  libdispatch.dylib                   0x000000010f0747f4 _dispatch_lane_invoke + 480
  41  libdispatch.dylib                   0x000000010f07e8b8 _dispatch_workloop_worker_thread + 733
  42  libsystem_pthread.dylib             0x000000010f45b61c _pthread_wqthread + 409
  43  libsystem_pthread.dylib             0x000000010f45b415 start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException

Posted by

cheesemaker

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Answer 4

same for me. iOS11 works with no hassle, while iOS12 crashes

Posted by

Angelo GoApp

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Answer 5

I just solved the same problem with you in my project.

In my project, the reason for the error was because I created a category of NSObject and added a property called "userInfo" using the AssociatedObject. When I deleted this category, it no longer crashes. I suspect that this userInfo property conflicts with the internal implementation of some of Apple's classes.

Hope this helps you.

Posted by

Suta

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Answer 6

this may actually be the cause indeed, at least by looking at the stacktrace. my problem is that I have several categories which extend classes deriving from NSObject, and any of them could be causing the issue. It's not necessarily caused by a NSObject extension. I have seen that many extensions refer to AssociatedObject in my project, expecially UIImage+AFNetworking

Posted by

Angelo GoApp

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NSInternalInconsistencyException: Asset (67) has too many attributes to treat as a single bitfield

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