Question

我试图从编程Erlang 2nd Ed的第23章运行sellaprime示例OTP应用程序。我已将代码上传到https://github.com/myles-mcdonnell/sellaprime

用钢筋编译后我从根运行erl，然后切换dir ..

1> c(src).
/Users/mylesmcdonnell/sellaprime/src
ok

然后我加载了应用..

2> application:load(sellaprime).
ok

然后我尝试启动应用程序..

3> application:start(sellaprime).

=CRASH REPORT==== 5-Feb-2015::09:55:34 ===
  crasher:
    initial call: application_master:init/4
    pid: <0.48.0>
    registered_name: []
    exception exit: {bad_return,
                        {{sellaprime_app,start,[normal,[]]},
                         {'EXIT',
                             {undef,
                                 [{sellaprime_app,start,[normal,[]],[]},
                                  {application_master,start_supervisor,3,
                                      [{file,"application_master.erl"},
                                       {line,326}]},
                                  {application_master,start_the_app,5,
                                      [{file,"application_master.erl"},
                                       {line,308}]},
                                  {application_master,start_it_new,7,
                                      [{file,"application_master.erl"},
                                       {line,294}]}]}}}}
      in function  application_master:init/4 (application_master.erl, line 133)
    ancestors: [<0.47.0>]
    messages: [{'EXIT',<0.49.0>,normal}]
    links: [<0.47.0>,<0.7.0>]
    dictionary: []
    trap_exit: true
    status: running
    heap_size: 610
    stack_size: 27
    reductions: 124
  neighbours:

=INFO REPORT==== 5-Feb-2015::09:55:34 ===
    application: sellaprime
    exited: {bad_return,
                {{sellaprime_app,start,[normal,[]]},
                 {'EXIT',
                     {undef,
                         [{sellaprime_app,start,[normal,[]],[]},
                          {application_master,start_supervisor,3,
                              [{file,"application_master.erl"},{line,326}]},
                          {application_master,start_the_app,5,
                              [{file,"application_master.erl"},{line,308}]},
                          {application_master,start_it_new,7,
                              [{file,"application_master.erl"},
                               {line,294}]}]}}}}
    type: temporary
{error,
    {bad_return,
        {{sellaprime_app,start,[normal,[]]},
         {'EXIT',
             {undef,
                 [{sellaprime_app,start,[normal,[]],[]},
                  {application_master,start_supervisor,3,
                      [{file,"application_master.erl"},{line,326}]},
                  {application_master,start_the_app,5,
                      [{file,"application_master.erl"},{line,308}]},
                  {application_master,start_it_new,7,
                      [{file,"application_master.erl"},{line,294}]}]}}}}}

显然有些事情未定义，但我正在努力确定什么？我直接从图书下载网站解除了代码，没有任何变化。

Erlang sellaprime OTP应用程序

0 个答案: