我正在尝试修复我的应用中的一次崩溃，但我必须说实话我到目前为止无法解决这个问题。
0 libobjc.A.dylib 0x378f90fc objc_retain + 12
1 myApp 0x00254ce3 __74+[AFJSONRequestOperation JSONRequestOperationWithRequest:success:failure:]_block_invoke (AFJSONRequestOperation.m:54)
2 libdispatch.dylib 0x37de10c3 _dispatch_call_block_and_release + 11
3 libdispatch.dylib 0x37de10af _dispatch_client_callout + 23
4 libdispatch.dylib 0x37de39a9 _dispatch_main_queue_callback_4CF + 269
5 CoreFoundation 0x2d56a5b1 __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
6 CoreFoundation 0x2d568e7d __CFRunLoopRun + 1309
7 CoreFoundation 0x2d4d3471 CFRunLoopRunSpecific + 525
8 CoreFoundation 0x2d4d3253 CFRunLoopRunInMode + 107
9 GraphicsServices 0x3220d2eb GSEventRunModal + 139
10 UIKit 0x2fd88845 UIApplicationMain + 1137
11 myApp 0x0012dc2b main (main.m:14)
12 libdyld.dylib 0x37df5ab7 start + 3
这个崩溃报告没有提示，我的意思是AFJSONRequestOperation.m：54只要调用完成块（如果存在）
[requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
if (success) {
success(operation.request, operation.response, responseObject); // line 54
}
...]
所以我想知道是否有人可以帮助我，不是为了解决这个问题，而是给我一些提示，找到理解它的正确方向。
提前致谢