Ruby `对于_fd'；：不是套接字文件描述符

我已经安装了Redmine，只要我使用开发服务器，它就可以正常工作。现在我正试图使用fastcgi将其配置为在apache下运行。正在显示以下消息：

/usr/local/share/gems/gems/fcgi-0.9.2.1/lib/fcgi.rb:54:in `for_fd': not a socket file descriptor (ArgumentError)
        from /usr/local/share/gems/gems/fcgi-0.9.2.1/lib/fcgi.rb:54:in `default_connection'
        from /usr/local/share/gems/gems/fcgi-0.9.2.1/lib/fcgi.rb:40:in `each'
        from /usr/local/share/gems/gems/rack-1.4.7/lib/rack/handler/fastcgi.rb:27:in `run'
        from ./dispatch.fcgi:20:in `<main>'

/tmp/test.rb:5:in `for_fd': not a socket file descriptor (ArgumentError)

当我尝试运行上述代码时，会显示相同的消息：

/usr/local/share/gems/gems/fcgi-0.9.2.1/lib/fcgi.rb:54:in `for_fd': not a socket file descriptor (ArgumentError)
        from /usr/local/share/gems/gems/fcgi-0.9.2.1/lib/fcgi.rb:54:in `default_connection'
        from /usr/local/share/gems/gems/fcgi-0.9.2.1/lib/fcgi.rb:40:in `each'
        from /usr/local/share/gems/gems/rack-1.4.7/lib/rack/handler/fastcgi.rb:27:in `run'
        from ./dispatch.fcgi:20:in `<main>'

/tmp/test.rb:5:in `for_fd': not a socket file descriptor (ArgumentError)

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由于我不是ruby程序员，我想了解，发生了什么事？

你在docker中运行它吗？@fl00r no.顺便说一句，我在CentOS 6.2中运行。Ruby是通过yum安装的。你在docker中运行吗？@fl00r no.BTW，我在CentOS 6.2中运行。Ruby是通过yum安装的。