我从布料中遇到了这个崩溃，但还没找到原因。以下是Fabric报告我的线程。谁能告诉我如何修复这种类型的崩溃？
Crashed: com.apple.main-thread
0 libsystem_kernel.dylib 0x188d81014 __pthread_kill + 8
1 libsystem_pthread.dylib 0x188e4b334 pthread_kill + 112
2 libsystem_c.dylib 0x188cf59c4 abort + 140
3 libc++abi.dylib 0x1887c11b0 __cxa_bad_cast + 130
4 libc++abi.dylib 0x1887dac04
default_unexpected_handler() + 302
5 libobjc.A.dylib 0x1887e8820 _objc_terminate() + 124
6 AppName 0x100339dfc CLSTerminateHandler() + 4298694140
7 libc++abi.dylib 0x1887d75d4 std::__terminate(void (*)()) + 16
8 libc++abi.dylib 0x1887d71a8 __cxa_rethrow + 144
9 libobjc.A.dylib 0x1887e86f8 objc_exception_rethrow + 44
10 CoreFoundation 0x189c62e00 CFRunLoopRunSpecific + 532
11 GraphicsServices 0x18b6cc074 GSEventRunModal + 100
12 UIKit 0x18ff14130 UIApplicationMain + 208
13 AppName 0x100156440 main (AppDelegate.swift:16)
14 libdyld.dylib 0x188c7159c start + 4
1: com.apple.uikit.eventfetch-thread
0 libsystem_kernel.dylib 0x188d63224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x188d6309c mach_msg + 72
2 CoreFoundation 0x189d34e88 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x189d32adc __CFRunLoopRun + 1060
4 CoreFoundation 0x189c62d94 CFRunLoopRunSpecific + 424
5 Foundation 0x18a77cd64 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x18a79db34 -[NSRunLoop(NSRunLoop) runUntilDate:] + 96
7 UIKit 0x19089e5f8 -[UIEventFetcher threadMain] + 136
8 Foundation 0x18a87a2c8 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x188e4975c _pthread_body + 240
10 libsystem_pthread.dylib 0x188e4966c _pthread_body + 282
11 libsystem_pthread.dylib 0x188e46d84 thread_start + 4
2: com.twitter.crashlytics.ios.MachExceptionServer
0 libsystem_kernel.dylib 0x188d63224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x188d6309c mach_msg + 72
2 AppName 0x1003277c8 CLSMachExceptionServer + 4298618824
3 libsystem_pthread.dylib 0x188e4975c _pthread_body + 240
4 libsystem_pthread.dylib 0x188e4966c _pthread_body + 282
5 libsystem_pthread.dylib 0x188e46d84 thread_start + 4
3 : GAIThread
0 libsystem_kernel.dylib 0x188d63224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x188d6309c mach_msg + 72
2 CoreFoundation 0x189d34e88 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x189d32adc __CFRunLoopRun + 1060
4 CoreFoundation 0x189c62d94 CFRunLoopRunSpecific + 424
5 Foundation 0x18a77cd64 -[NSRunLoop(NSRunLoop) runMode:beforeDate:] + 304
6 Foundation 0x18a7d16b4 -[NSRunLoop(NSRunLoop) run] + 88
7 AppName 0x100307b24 +[GAI threadMain:] + 4298488612
8 Foundation 0x18a87a2c8 __NSThread__start__ + 996
9 libsystem_pthread.dylib 0x188e4975c _pthread_body + 240
10 libsystem_pthread.dylib 0x188e4966c _pthread_body + 282
11 libsystem_pthread.dylib 0x188e46d84 thread_start + 4
4: com.apple.NSURLConnectionLoader
0 libsystem_kernel.dylib 0x188d63224 mach_msg_trap + 8
1 libsystem_kernel.dylib 0x188d6309c mach_msg + 72
2 CoreFoundation 0x189d34e88 __CFRunLoopServiceMachPort + 192
3 CoreFoundation 0x189d32adc __CFRunLoopRun + 1060
4 CoreFoundation 0x189c62d94 CFRunLoopRunSpecific + 424
5 CFNetwork 0x18a46eca4 +[NSURLConnection(Loader) _resourceLoadLoop:] + 404
6 Foundation 0x18a87a2c8 __NSThread__start__ + 996
7 libsystem_pthread.dylib 0x188e4975c _pthread_body + 240
8 libsystem_pthread.dylib 0x188e4966c _pthread_body + 282
9 libsystem_pthread.dylib 0x188e46d84 thread_start + 4
5: Thread
0 libsystem_kernel.dylib 0x188d81a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x188e47274 _pthread_wqthread + 1260
2 libsystem_pthread.dylib 0x188e46d7c start_wqthread + 4
6: Thread
0 libsystem_kernel.dylib 0x188d81a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x188e47274 _pthread_wqthread + 1260
2 libsystem_pthread.dylib 0x188e46d7c start_wqthread + 4
7: Thread
0 libsystem_pthread.dylib 0x188e46d78 start_wqthread + 126
8: Thread
0 libsystem_pthread.dylib 0x188e46d78 start_wqthread + 126
9: Thread
0 libsystem_kernel.dylib 0x188d81a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x188e47274 _pthread_wqthread + 1260
2 libsystem_pthread.dylib 0x188e46d7c start_wqthread + 4
10: Thread
0 libsystem_kernel.dylib 0x188d81a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x188e470a0 _pthread_wqthread + 792
2 libsystem_pthread.dylib 0x188e46d7c start_wqthread + 4
11: Thread
0 libsystem_pthread.dylib 0x188e46d78 start_wqthread + 126
12: GCDAsyncUdpSocket
0 libsystem_kernel.dylib 0x188d81a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x188e4bc30 _pthread_workqueue_addthreads + 72
2 libdispatch.dylib 0x188c4fcec _dispatch_global_queue_poke_slow + 76
3 AppName 0x10005d3f4 -[GCDAsyncUdpSocket notifyDidReceiveData:fromAddress:withFilterContext:] (GCDAsyncUdpSocket.m:980)
4 AppName 0x100067698 -[GCDAsyncUdpSocket doReceive] (GCDAsyncUdpSocket.m:4459)
5 AppName 0x10005f4d8 __57-[GCDAsyncUdpSocket setupSendAndReceiveSourcesForSocket4]_block_invoke260 (GCDAsyncUdpSocket.m:1760)
6 libdispatch.dylib 0x188c3e9a0 _dispatch_client_callout + 16
7 libdispatch.dylib 0x188c4b604 _dispatch_continuation_pop + 448
8 libdispatch.dylib 0x188c57c1c _dispatch_source_latch_and_call + 204
9 libdispatch.dylib 0x188c408a0 _dispatch_source_invoke + 804
10 libdispatch.dylib 0x188c4c964 _dispatch_queue_serial_drain + 560
11 libdispatch.dylib 0x188c422cc _dispatch_queue_invoke + 884
12 libdispatch.dylib 0x188c4d950 _dispatch_root_queue_drain_deferred_item + 256
13 libdispatch.dylib 0x188c54170 _dispatch_kevent_worker_thread + 760
14 libsystem_pthread.dylib 0x188e4708c _pthread_wqthread + 772
15 libsystem_pthread.dylib 0x188e46d7c start_wqthread + 4
13: Thread
0 libsystem_kernel.dylib 0x188d81a88 __workq_kernreturn + 8
1 libsystem_pthread.dylib 0x188e47274 _pthread_wqthread + 1260
2 libsystem_pthread.dylib 0x188e46d7c start_wqthread + 4
我用word＆＃34; AppName＆＃34;替换了我的项目名称。在上面的代码中。 感谢。