如果他们漂亮地打印错误消息会很好，但你可以自己做，但有点麻烦。消息的核心是一个 erlang 术语，在本例中是一个列表。只需将 erlang 术语复制并粘贴到您的 shell 中，添加句点以使其成为法律声明：
> [{simple_bridge_request_wrapper,post_param,[{simple_bridge_request_wrapper,mochiweb_request_bridge,{mochicow_request,#Port<0.41310>,'POST',"/greeting/list",'HTTP/1.1',{9,{"host",{"host","jason-virtualbox:8001"},{"accept",{"accept", "text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8"},nil,{"accept-language",{"accept-language","en-US,en;q=0.5"},{"accept-encoding",{"accept-encoding","gzip, deflate"},nil,nil},{"connection",{"connection","keep-alive"},nil,{"content-type",{"content-type","application/x-www-form-urlencoded"},{"content-length",{"content-length","44"},nil,nil},nil}}}},{"user-agent",{"user-agent","Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0"},{"referer",{"referer","http://****:8001/greeting/hello"},nil,nil},nil}}},<<"SheetName=%7BBook1.2%7D%2C%7B0-Sheet1.csv%7D">>},false,[],[],none}],[]},{pigeon_greeting_controller,list,3,[{file,"/home/jason/pigeon/src/controller/pigeon_greeting_controller.erl"},{line,34}]},{boss_web_controller,call_controller_action,3,[{file,"src/boss/boss_web_controller.erl"},{line,363}]},{boss_web_controller,apply_action,4,[{file,"src/boss/boss_web_controller.erl"},{line,355}]},{boss_web_controller,execute_action_inner,9,[{file,"src/boss/boss_web_controller.erl"},{line,334}]},{boss_web_controller_handle_request,process_dynamic_request,4,[{file,"src/boss/boss_web_controller_handle_request.erl"},{line,242}]},{boss_web_controller_handle_request,process_request,4,[{file,"src/boss/boss_web_controller_handle_request.erl"},{line,228}]},{boss_web_controller_handle_request,set_timer,7,[{file,"src/boss/boss_web_controller_handle_request.erl"},{line,148}]}].
...并点击返回：
* 1: syntax error before: '\\'
糟糕，显然 erlang 中没有端口的字面表示，所以他们打印了一个简短的描述：#Port<0.41310>。在erlang中，您可以将非法字符用单引号括起来，我认为创建一个原子，这是一个合法术语，因此shell将允许它：'#Port<0.41310>'. 那么：
> [{simple_bridge_request_wrapper,post_param,[{simple_bridge_request_wrapper,mochiweb_request_bridge,{mochicow_request,'#Port<0.41310>','POST',"/greeting/list",'HTTP/1.1',{9,{"host",{"host","jason-virtualbox:8001"},{"accept",{"accept", "text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8"},nil,{"accept-language",{"accept-language","en-US,en;q=0.5"},{"accept-encoding",{"accept-encoding","gzip, deflate"},nil,nil},{"connection",{"connection","keep-alive"},nil,{"content-type",{"content-type","application/x-www-form-urlencoded"},{"content-length",{"content-length","44"},nil,nil},nil}}}},{"user-agent",{"user-agent","Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0"},{"referer",{"referer","http://****:8001/greeting/hello"},nil,nil},nil}}},<<"SheetName=%7BBook1.2%7D%2C%7B0-Sheet1.csv%7D">>},false,[],[],none}],[]},{pigeon_greeting_controller,list,3,[{file,"/home/jason/pigeon/src/controller/pigeon_greeting_controller.erl"},{line,34}]},{boss_web_controller,call_controller_action,3,[{file,"src/boss/boss_web_controller.erl"},{line,363}]},{boss_web_controller,apply_action,4,[{file,"src/boss/boss_web_controller.erl"},{line,355}]},{boss_web_controller,execute_action_inner,9,[{file,"src/boss/boss_web_controller.erl"},{line,334}]},{boss_web_controller_handle_request,process_dynamic_request,4,[{file,"src/boss/boss_web_controller_handle_request.erl"},{line,242}]},{boss_web_controller_handle_request,process_request,4,[{file,"src/boss/boss_web_controller_handle_request.erl"},{line,228}]},{boss_web_controller_handle_request,set_timer,7,[{file,"src/boss/boss_web_controller_handle_request.erl"},{line,148}]}].
...并点击返回：
[{simple_bridge_request_wrapper,post_param,
[{simple_bridge_request_wrapper,mochiweb_request_bridge,
{mochicow_request,'#Port<0.41310>','POST',"/greeting/list",
'HTTP/1.1',
{9,
{"host",
{"host","jason-virtualbox:8001"},
{"accept",
{"accept",
"text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8"},
nil,
{"accept-language",
{"accept-language","en-US,en;q=0.5"},
{"accept-encoding",{[...],...},nil,...},
{"connection",{...},...}}},
{"user-agent",
{"user-agent",
"Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:30.0) Gecko/20100101 Firefox/30.0"},
{"referer",
{"referer","http://****:8001/greeting/hello"},
nil,nil},
nil}}},
<<"SheetName=%7BBook1.2%7D%2C%7B0-Sheet1.csv%7D">>},
false,[],[],none}],
[]},
{pigeon_greeting_controller,list,3,
[{file,
"/home/jason/pigeon/src/controller/pigeon_greeting_controller.erl"},
{line,34}]},
{boss_web_controller,call_controller_action,3,
[{file,"src/boss/boss_web_controller.erl"},{line,363}]},
{boss_web_controller,apply_action,4,
[{file,"src/boss/boss_web_controller.erl"},{line,355}]},
{boss_web_controller,execute_action_inner,9,
[{file,"src/boss/boss_web_controller.erl"},{line,334}]},
{boss_web_controller_handle_request,process_dynamic_request,
4,
[{file,"src/boss/boss_web_controller_handle_request.erl"},
{line,242}]},
{boss_web_controller_handle_request,process_request,4,
[{file,"src/boss/boss_web_controller_handle_request.erl"},
{line,228}]},
{boss_web_controller_handle_request,set_timer,7,
[{file,"src/boss/boss_web_controller_handle_request.erl"},
{line,148}]}]
我从来没有用过芝加哥老板，所以我无能为力。消息说undef，这让我觉得也许 erlang 找不到第一个函数。也许您还没有安装或编译 simple_bridge_request_wrapper 或其他什么？
显然，这会一直很烦人。也许有一种方法可以获取上一个 shell 命令的输出。然后，您可以编写一个个人 shell fun 并将其放入您的 user_default.erl 以自动执行此过程。或者如果您使用 emacs，请在 elisp 中执行此操作。或修补 CB 以漂亮地打印其错误消息。