XMPPStream 崩溃的情况

#31. Crashed: com.twitter.crashlytics.ios.exception
0  SikeSports                     0x100765d2c CLSProcessRecordAllThreads + 4302855468
1  SikeSports                     0x100765d2c CLSProcessRecordAllThreads + 4302855468
2  SikeSports                     0x100765be8 CLSProcessRecordAllThreads + 4302855144
3  SikeSports                     0x1007563a8 CLSHandler + 4302791592
4  SikeSports                     0x100763e00 __CLSExceptionRecord_block_invoke + 4302847488
5  libdispatch.dylib              0x18238547c _dispatch_client_callout + 16
6  libdispatch.dylib              0x182390728 _dispatch_barrier_sync_f_invoke + 100
7  SikeSports                     0x1007638a4 CLSExceptionRecord + 4302846116
8  SikeSports                     0x1007636d8 CLSExceptionRecordNSException + 4302845656
9  SikeSports                     0x1007632f8 CLSTerminateHandler() + 4302844664
10 libc++abi.dylib                0x181f92f44 std::__terminate(void (*)()) + 16
11 libc++abi.dylib                0x181f9285c __cxxabiv1::exception_cleanup_func(_Unwind_Reason_Code, _Unwind_Exception*) + 134
12 libobjc.A.dylib                0x181fa0094 _objc_exception_destructor(void*) + 330
13 CoreFoundation                 0x18293acf8 -[NSException initWithCoder:] + 118
14 SikeSports                     0x1008a6c10 UmengSignalHandler + 4304170000
15 libsystem_platform.dylib       0x18259993c _sigtramp + 52
16 libxml2.2.dylib                0x182c6040c __xmlRaiseError + 80
17 libxml2.2.dylib                0x182c75a54 xmlFatalErr + 208
18 libxml2.2.dylib                0x182c4963c xmlParseTryOrFinish + 5276
19 libxml2.2.dylib                0x182c47930 xmlParseChunk + 768
20 SikeSports                     0x1007db7a4 -[XMPPParser parseData:] (XMPPParser.m:783)
21 SikeSports                     0x10084e280 __41-[XMPPStream socket:didReadData:withTag:]_block_invoke (XMPPStream.m)