以下错误消息的含义是什么？

Question

我正在用Eclipse的PyDev尝试django。

当我尝试使用runserver启动服务器时，收到以下消息：

Performing system checks...System check identified no issues (0 silenced).
October 12, 2014 - 17:40:14
Django version 1.7, using settings 'mysite.settings'
Starting development server at `http://127.0.0.1:8000/`
Quit the server with CTRL-BREAK.
Error: [WinError 10013] An attempt was made to access a socket in a way forbidden by its caccess permissions

最后一行是错误消息，我不明白。

有人可以帮忙解释一下吗？ 我使用MySQL。