以下是Xcode中的日志
2017-09-05 11:12:06.477 AppDemo[5064:29077] -[NSTaggedPointerString unsignedIntValue]: unrecognized selector sent to instance 0xa303036383231327
2017-09-05 11:12:06.642 AppDemo[5064:29077] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[NSTaggedPointerString unsignedIntValue]: unrecognized selector sent to instance 0xa303036383231327'
*** First throw call stack:
(
0 CoreFoundation 0x0000000110564b0b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x000000010f41a141 objc_exception_throw + 48
2 CoreFoundation 0x00000001105d4134 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x00000001104eb840 ___forwarding___ + 1024
4 CoreFoundation 0x00000001104eb3b8 _CF_forwarding_prep_0 + 120
5 AppDemo 0x000000010e7cfc94 -[RCTMultipartStreamReader emitProgress:contentLength:final:callback:] + 244
6 AppDemo 0x000000010e7d048a -[RCTMultipartStreamReader readAllPartsWithCompletionCallback:progressCallback:] + 1610
7 AppDemo 0x000000010e81fdbc -[RCTMultipartDataTask URLSession:streamTask:didBecomeInputStream:outputStream:] + 444
8 CFNetwork 0x000000010ffc4c51 __88-[NSURLSession delegate_streamTask:didBecomeInputStream:outputStream:completionHandler:]_block_invoke + 51
9 Foundation 0x000000010ef243b7 __NSBLOCKOPERATION_IS_CALLING_OUT_TO_A_BLOCK__ + 7
10 Foundation 0x000000010ef240bb -[NSBlockOperation main] + 101
11 Foundation 0x000000010ef22877 -[__NSOperationInternal _start:] + 627
12 Foundation 0x000000010ef1e5fc __NSOQSchedule_f + 198
13 libdispatch.dylib 0x000000011424605c _dispatch_client_callout + 8
14 libdispatch.dylib 0x000000011422494f _dispatch_queue_serial_drain + 221
15 libdispatch.dylib 0x0000000114225669 _dispatch_queue_invoke + 1084
16 libdispatch.dylib 0x0000000114227ec4 _dispatch_root_queue_drain + 634
17 libdispatch.dylib 0x0000000114227bef _dispatch_worker_thread3 + 123
18 libsystem_pthread.dylib 0x00000001145dd712 _pthread_wqthread + 1299
19 libsystem_pthread.dylib 0x00000001145dd1ed start_wqthread + 13
)
libc++abi.dylib: terminating with uncaught exception of type NSException