報錯信息：

libBacktraceRecording.dylib`__gcd_queue_item_enqueue_hook_block_invoke, queue = 'com.apple.NSURLSession-work', stop reason = EXC_BAD_ACCESS (code=1, address=0xf8686a68b98c6ec8)  
      * frame #0: 0x0000000100042e8c libBacktraceRecording.dylib`__gcd_queue_item_enqueue_hook_block_invoke

查閱相關文檔顯示，這個是蘋果的一個bug，參考：蘋果官方論壇、stackoverflow

After speaking with Apple Technical Support we confirmed that it's a bug within the ?libBacktraceRecording.dylib library, which is used for debugging within Xcode. I have filed a bug report and have been told that it won't crash on a users device since this is a debug error that occurs within a library not present on most users' devices.

經過多次嘗試，我得出了如下結論：

只有用模擬器調試或者真機調試（USB調試/無限調試）的情況下才會出現這個崩潰，非調試模式下是沒有這個崩潰的。

測試后結論得到印證，雖然這個在app上架后不會出這個問題，但是平時大部分時間都要Debug的，這樣的崩潰很影響效率。

經過分析嘗試，我將網絡層的AFNetworking網絡請求改為Moya，再次編譯，問題解決了。

可能是因為AFNetworking網絡請求的某個階段與libBacktraceRecording.dylib沖突了，導致崩潰。