[英]My Erlang application don't see ranch module dependency
(这里是新手)尝试运行牧场示例时出现错误。 通过rebar
我创建了应用程序和节点(请参见github上 )。 但是,当我尝试构建和运行它时,我得到的是undef
ranch,start_listener
。
请查看完整的控制台输出:
$ rebar get-deps compile generate && sh rel/reverse/bin/reverse console
WARN: Expected reverse/deps/ranch to be an app dir (containing ebin/*.app), but no .app found.
==> rel (get-deps)
==> reverse (get-deps)
WARN: Expected reverse/deps/ranch to be an app dir (containing ebin/*.app), but no .app found.
Pulling ranch from {git,"git@github.com:ninenines/ranch.git",{tag,"1.1.0"}}
Cloning into 'ranch'...
==> ranch (get-deps)
==> ranch (compile)
Compiled src/ranch_transport.erl
Compiled src/ranch_sup.erl
Compiled src/ranch_ssl.erl
Compiled src/ranch_tcp.erl
Compiled src/ranch_protocol.erl
Compiled src/ranch_listener_sup.erl
Compiled src/ranch_app.erl
Compiled src/ranch_acceptors_sup.erl
Compiled src/ranch_acceptor.erl
Compiled src/ranch_server.erl
Compiled src/ranch.erl
Compiled src/ranch_conns_sup.erl
==> rel (compile)
==> reverse (compile)
Compiled src/reverse_sup.erl
Compiled src/reverse_app.erl
Compiled src/reverse_protocol.erl
==> rel (generate)
WARN: 'generate' command does not apply to directory reverse
Exec: reverse/rel/reverse/erts-6.3/bin/erlexec -boot reverse/rel/reverse/releases/1/reverse -mode embedded -config reverse/rel/reverse/releases/1/sys.config -args_file reverse/rel/reverse/releases/1/vm.args -- console
Root: reverse/rel/reverse
Erlang/OTP 17 [erts-6.3] [source-f9282c6] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]
Eshell V6.3 (abort with ^G)
(reverse@127.0.0.1)1>
=INFO REPORT==== 30-Dec-2014::22:47:08 ===
application: reverse
exited: {bad_return,
{{reverse_app,start,[normal,[]]},
{'EXIT',
{undef,
[{ranch,start_listener,
[reverse,10,ranch_tcp,
[{port,5555}],
reverse_protocol,[]],
[]},
{reverse_app,start,2,
[{file,"src/reverse_app.erl"},{line,13}]},
{application_master,start_it_old,4,
[{file,"application_master.erl"},
{line,272}]}]}}}}
type: permanent
{"Kernel pid terminated",application_controller,"{application_start_failure,reverse,{bad_return,{{reverse_app,start,[normal,[]]},{'EXIT',{undef,[{ranch,start_listener,[reverse,10,ranch_tcp,[{port,5555}],reverse_protocol,[]],[]},{reverse_app,start,2,[{file,\"src/reverse_app.erl\"},{line,13}]},{application_master,start_it_old,4,[{file,\"application_master.erl\"},{line,272}]}]}}}}}"}
Crash dump was written to: erl_crash.dump
我不确定我是否将ranch
正确地添加到reltool.config
( 请参见github上 )。 但是,如果我从libs_dir
路径中删除deps
,我将得到rebar generate
错误Application version clash. Multiple directories contain version ...
Application version clash. Multiple directories contain version ...
UPDATE如果我删除失败的通话并运行它, application:which_applications().
给我{ranch,[],[]}
作为跑步者之一。
更新版本
$ erl
Erlang/OTP 17 [erts-6.3] [source-f9282c6] [64-bit] [smp:4:4] [async-threads:10] [hipe] [kernel-poll:false]
$ rebar --version
rebar 2.5.1 17 20141223_141030 git 2.5.1-84-gdd9125e
我做错了什么?
提前致谢!
在reltool.config
,从Ranch的路径中删除ebin
目录:
{app, ranch, [{mod_cond, app}, {incl_cond, include}, {lib_dir, "../deps/ranch/"}]}
如果您有很多依赖关系,这样做会更方便:
{lib_dirs, ["../deps"]}
而不是每个依赖项都有单独的{app, <dep_name>, [...]}
。
Application version clash. Multiple directories contain version XXX
Application version clash. Multiple directories contain version XXX
错误,表明Ranch应用程序已安装(可能在Erlang lib目录中),与Rebar下载的deps版本产生冲突。
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