Crashed: com.apple.main-thread 0 libsystem_kernel.dylib 0xea00 __abort_with_payload + 8 1 libsystem_kernel.dylib 0x2fb4c abort_with_payload_wrapper_internal + 100 2 libsystem_kernel.dylib 0x2fae8 abort_with_payload_wrapper_internal + 26 3 libobjc.A.dylib 0x2ac64 _objc_fatalv(unsigned long long, unsigned long long, char const*, char*) + 112 4 libobjc.A.dylib 0x2abf4 _objc_fatalv(unsigned long long, unsigned long long, char const*, char*) + 26 5 libobjc.A.dylib 0x61d0 weak_register_no_lock + 332 6 libobjc.A.dylib 0xa6b0 objc_storeWeak + 344 7 UIKitCore 0x113440 _UIResponderForwarderWantsForwardingFromResponder + 728 8 UIKitCore 0x32fdc __forwardTouchMethod_block_invoke + 40 9 CoreFoundation 0xa2c0 NSSET_IS_CALLING_OUT_TO_A_BLOCK + 16 10 CoreFoundation 0x856e4 -[__NSSetM enumerateObjectsWithOptions:usingBlock:] + 196 11 UIKitCore 0x1eb140 forwardTouchMethod + 216 12 UIKitCore 0xf21f8 -[UIWindow _sendTouchesForEvent:] + 496 13 UIKitCore 0xf16f0 -[UIWindow sendEvent:] + 3224 14 UIKitCore 0xf09ec -[UIApplication sendEvent:] + 740 15 UIKitCore 0xeec58 __dispatchPreprocessedEventFromEventQueue + 2052 16 UIKitCore 0x13496c __processEventQueue + 5612 17 UIKitCore 0x418110 __eventFetcherSourceCallback + 220 18 CoreFoundation 0xcc500 CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION + 24 19 CoreFoundation 0xd7e70 __CFRunLoopDoSource0 + 172 20 CoreFoundation 0x6227c __CFRunLoopDoSources0 + 320 21 CoreFoundation 0x77230 __CFRunLoopRun + 780 22 CoreFoundation 0x7bdfc CFRunLoopRunSpecific + 584 23 GraphicsServices 0x1984 GSEventRunModal + 160 24 UIKitCore 0x376e7c -[UIApplication _run] + 868 25 UIKitCore 0x376af4 UIApplicationMain + 312