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以为我会探索氮气。按照http://nitrogenproject.com/doc/tutorial.html中概述的安装说明，我从 GitHub 中提取源代码，执行第二步，制作 rel_inets，然后碰壁。这是系统告诉我的：

nitrogen$ make rel_inets
...
make[2]: Leaving directory `/home/lloyd/Erl/nitrogen'
Running Erlang
Generating "reltool.config" with merged overlays
...Loading base file: "reltool_base.config"
...Merging Overlay from "reltool_inets.config"
...Writing "reltool.config"
...SUCCESS
make[2]: Entering directory `/home/lloyd/Erl/nitrogen'
Running Erlang
==> rel (generate)
ERROR: generate failed while processing /home/lloyd/Erl/nitrogen/rel: {'EXIT',      {{badmatch,{error,"Illegal library \"/home/lloyd/Programming/Erlang/zippity/apps\": no such file or directory"}},

原来 /home/lloyd/Programming/Erlang/zippity/apps 早就被删除了；例如，它不在我的目录树中。

哪位好心的巫师能告诉我，为什么世界上会编造出这段古老的历史？还有……我能做些什么呢？

非常感谢，

LRP

根据要求，我编辑了 Makefile 的第 231 行。这是 make rel_inets 的输出：

lloyd@Reliance:~/Erl/nitrogen$ make rel_inets
make[1]: Entering directory `/home/lloyd/Erl/nitrogen'
./rebar get-deps
Running Erlang
==> rel (get-deps)
==> nitrogen (get-deps)
./rebar compile
Running Erlang
==> rel (compile)
==> nitrogen (compile)
make[2]: Entering directory `/home/lloyd/Erl/nitrogen'
make[2]: Leaving directory `/home/lloyd/Erl/nitrogen'
Running Erlang
Generating "reltool.config" with merged overlays
...Loading base file: "reltool_base.config"
...Merging Overlay from "reltool_inets.config"
...Writing "reltool.config"
...SUCCESS
make[2]: Entering directory `/home/lloyd/Erl/nitrogen'
Running Erlang
DEBUG: Consult config file "/home/lloyd/Erl/nitrogen/rel/rebar.config"
DEBUG: Rebar location: "/home/lloyd/Erl/nitrogen/rel/rebar"
DEBUG: is_rel_dir(/home/lloyd/Erl/nitrogen/rel) -> {true,
                                                    "/home/lloyd/Erl/nitrogen/rel/reltool.config"}
DEBUG: Available deps: []
DEBUG: Missing deps  : []
DEBUG: Predirs: []
==> rel (generate)
DEBUG: Consult config file "/home/lloyd/Erl/nitrogen/rel/reltool.config"
DEBUG: vcs_vsn: Unknown VCS atom in vsn field: "2.2.2"
DEBUG: vcs_vsn: Unknown VCS atom in vsn field: []
ERROR: generate failed while processing /home/lloyd/Erl/nitrogen/rel: {'EXIT',{{badmatch,{error,"Illegal library \"/home/lloyd/Programming/Erlang/zippity/apps\": no such file or directory"}},
         [{rebar_reltool,generate,2,[]},
          {rebar_core,run_modules,4,[]},
          {rebar_core,execute,5,[]},
          {rebar_core,process_dir1,6,[]},
          {rebar_core,process_commands,2,[]},
          {rebar,main,1,[]},
          {escript,run,2,[{file,"escript.erl"},{line,747}]},
          {escript,start,1,[{file,"escript.erl"},{line,277}]}]}}
make[2]: *** [generate] Error 1
make[2]: Leaving directory `/home/lloyd/Erl/nitrogen'
make[1]: *** [rel] Error 2
make[1]: Leaving directory `/home/lloyd/Erl/nitrogen'
make: *** [rel_inets] Error 2
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1 回答 1

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非常感谢各位。显然，我在某个时候设置了 ERL_LIBS 并没有完全理解其中的含义。当我删除库目录时，ERL_LIBS 值是孤立的。所以，取消设置 ERL_LIBS 就成功了。现在安装了氮气。

重新安装 Erlang：感谢 Bob Ippolito 的提示，我从系统中清除了 Erlang，安装了 Erlang 依赖项，然后通过 kerl 重新安装了 Erlang。钢筋现在编译。n2o 仍然不合作——在多次警告后编译期间停止。但我今天会解决这个问题。

再次感谢，

LRP

于 2014-05-07T12:45:50.987 回答