KeyboardExtension[65191:2547754] [] __nwlog_err_simulate_crash simulate crash already simulated "nw_socket_set_common_sockopts setsockopt SO_NOAPNFALLBK failed: [42] Protocol not available"
KeyboardExtension[65191:2547754] [] nw_socket_set_common_sockopts setsockopt SO_NOAPNFALLBK failed: [42] Protocol not available, dumping backtrace:
[x86_64] libnetcore-856.20.4
0 libsystem_network.dylib 0x000000010f6a4682 __nw_create_backtrace_string + 123
1 libnetwork.dylib 0x00000001100b7932 nw_socket_add_input_handler + 3100
2 libnetwork.dylib 0x00000001100954f4 nw_endpoint_flow_attach_protocols + 3768
3 libnetwork.dylib 0x0000000110094511 nw_endpoint_flow_setup_socket + 563
4 libnetwork.dylib 0x0000000110093270 -[NWConcrete_nw_endpoint_flow startWithHandler:] + 2612
5 libnetwork.dylib 0x00000001100ae44d nw_endpoint_handler_path_change + 1261
6 libnetwork.dylib 0x00000001100ade7c nw_endpoint_handler_start + 570
7 libnetwork.dylib 0x00000001100c5ae5 nw_endpoint_resolver_start_next_child + 2240
8 libdispatch.dylib 0x000000010f44e12e _dispatch_client_callout + 8
9 libdispatch.dylib 0x000000010f4319d5 _dispatch_continuation_pop + 578
10 libdispatch.dylib 0x000000010f44277d _dispatch_source_latch_and_call + 192
11 libdispatch.dylib 0x000000010f43b5a9 _dispatch_source_invoke + 1259
12 libdispatch.dylib 0x000000010f43331f _dispatch_queue_serial_drain + 502
13 libdispatch.dylib 0x000000010f433cf3 _dispatch_queue_invoke + 1118
14 libdispatch.dylib 0x000000010f435a0e _dispatch_root_queue_drain + 506
15 libdispatch.dylib 0x000000010f4357b4 _dispatch_worker_thread3 + 113
16 libsystem_pthread.dylib 0x000000010f7f44de _pthread_wqthread + 1129
17 libsystem_pthread.dylib 0x000000010f7f2341 start_wqthread + 13
我将xcode 8.1版本与ios 10一起使用。我在键盘上使用API。在执行扩展时，我在控制台日志中遇到上述崩溃。
我已经完成Error: Protocol not available, dumping backtrace问题＆amp;尝试了接受的答案，但我仍然在日志中收到此错误。
任何帮助将不胜感激。提前谢谢。
答案 0 :(得分：0)
这是UIKit中的内部错误。根据Apple Bug Report Radar 4468254630，此问题已在iOS 11 Beta 1中修复。