NSGenericException 原因集合<NSConcreteMapTable: xxx> [英] NSGenericException reason Collection <NSConcreteMapTable: xxx>

问题描述

这是我在出现 SKScene 时看到的错误，此错误随机发生并且无法复制

this is the error that i see when present SKScene, this error occurs randomly and are not able to replicate

* 由于未捕获的异常NSGenericException"而终止应用程序，原因:* Collection <NSConcreteMapTable: 0x1459da60 > 在枚举时发生了变异.'

* Terminating app due to uncaught exception 'NSGenericException', reason: '* Collection < NSConcreteMapTable: 0x1459da60 > was mutated while being enumerated.'

发生了什么?

如果您需要任何其他信息，请告诉我

tell me if you need any other info

谢谢

*** First throw call stack:
(
    0   CoreFoundation                      0x025601e4 __exceptionPreprocess + 180
    1   libobjc.A.dylib                     0x022298e5 objc_exception_throw + 44
    2   CoreFoundation                      0x025efcf5 __NSFastEnumerationMutationHandler + 165
    3   Foundation                          0x01e47f03 -[NSConcreteMapTable countByEnumeratingWithState:objects:count:] + 66
    4   CoreFoundation                      0x0253d77f -[__NSFastEnumerationEnumerator nextObject] + 143
    5   SpriteKit                           0x01d009f2 +[SKTextureAtlas(Internal) findTextureNamed:] + 232
    6   SpriteKit                           0x01cf709c __26-[SKTexture loadImageData]_block_invoke + 1982
    7   SpriteKit                           0x01d34d09 _Z14SKSpinLockSyncPiU13block_pointerFvvE + 40
    8   SpriteKit                           0x01cf6898 -[SKTexture loadImageData] + 228
    9   SpriteKit                           0x01cf65d9 __51+[SKTexture preloadTextures:withCompletionHandler:]_block_invoke + 241
    10  libdispatch.dylib                   0x02b117b8 _dispatch_call_block_and_release + 15
    11  libdispatch.dylib                   0x02b264d0 _dispatch_client_callout + 14
    12  libdispatch.dylib                   0x02b14eb7 _dispatch_root_queue_drain + 291
    13  libdispatch.dylib                   0x02b15127 _dispatch_worker_thread2 + 39
    14  libsystem_c.dylib                   0x02de1e72 _pthread_wqthread + 441
    15  libsystem_c.dylib                   0x02dc9daa start_wqthread + 30
)
libc++abi.dylib: terminating with uncaught exception of type NSException

推荐答案

据我所知，这是 sprite kit 方法中的一个 sprite kit 错误:

From what I can tell this a sprite kit bug in the sprite kit method:

preloadTextures: withCompletionHandler:

我能够解决此问题的唯一方法是完全删除此方法.根据苹果文档，如果您访问 size 属性，纹理也会被加载.所以我的解决方法就是这样做:

The only way I was able to fix this was by removing this method completely. According to apple docs the textures also get loaded if you access the size property. So my workaround is just to do exactly that:

for (SKTexture *texture in self.texturesArray) {
    texture.size;
}

它不漂亮，但它有效！

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