错误:协议不可用，正在转回回溯 [英] Error: Protocol not available, dumping backtrace

问题描述

2016-09-17 15:16:04.386085 appDemo[2371:94976] [] __nwlog_err_simulate_crash simulate crash already simulated **"nw_socket_set_common_sockopts setsockopt SO_NOAPNFALLBK failed: [42] Protocol not available"**
2016-09-17 15:16:04.386676 appDemo[2371:94976] [] nw_socket_set_common_sockopts setsockopt SO_NOAPNFALLBK failed: [42] Protocol not available, dumping backtrace:
        [x86_64] libnetcore-856.1.8
    0   libsystem_network.dylib             0x0000000112dc780e __nw_create_backtrace_string + 123
    1   libnetwork.dylib                    0x0000000113bfa194 nw_socket_add_input_handler + 3002
    2   libnetwork.dylib                    0x0000000113bd7db8 nw_endpoint_flow_attach_protocols + 3768
    3   libnetwork.dylib                    0x0000000113bd6dd5 nw_endpoint_flow_setup_socket + 563
    4   libnetwork.dylib                    0x0000000113bd5b34 -[NWConcrete_nw_endpoint_flow startWithHandler:] + 2612
    5   libnetwork.dylib                    0x0000000113bf0d11 nw_endpoint_handler_path_change + 1261
    6   libnetwork.dylib                    0x0000000113bf0740 nw_endpoint_handler_start + 570
    7   libdispatch.dylib                   0x0000000112b44980 _dispatch_call_block_and_release + 12
    8   libdispatch.dylib                   0x0000000112b6e
2016-09-17 15:16:04.387153 appDemo[2371:94976] [] nw_endpoint_flow_attach_protocols [2 192.168.0.100:80 in_progress socket-flow (satisfied)] Attached flow protocol
2016-09-17 15:16:04.387679 appDemo[2371:94976] [] nw_connection_endpoint_report [2 192.168.0.100:80 in_progress socket-flow (satisfied)] reported event flow:start_connect

我正在将xcode 8版本与ios 10一起使用.现在，我正在使用API​​.如果可以，我在Xcode 7中使用该API可以正常工作，但是当我在xcode 8中使用的相同API时，出现错误消息，无法解析.

I'm using xcode 8 version with ios 10. Now, I'm working an API. If, I use the API in Xcode 7 its works fine but when same API I used in xcode 8 error message appears Unable to parse.

推荐答案

我找到了如下解决方案:

I found the solution as follows:

1. 在XCode菜单中，依次转到产品">方案">编辑方案"
2. 打开参数"标签
3. 添加环境变量:-OS_ACTIVITY_MODE是disable

1. In XCode menu, Go to Product > Scheme > Edit Scheme
2. Open the Arguments tab
3. Add the Environment Variable :- OS_ACTIVITY_MODE is disable

这篇关于错误:协议不可用，正在转回回溯的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！