Grunt环境报错listen EADDRNOTAVAIL

Running "serve" task

Running "clean:server" (clean) task
Cleaning .tmp...OK

Running "wiredep:app" (wiredep) task

Running "wiredep:sass" (wiredep) task

Running "concurrent:server" (concurrent) task

    Running "compass:server" (compass) task
    directory .tmp/styles/ 
       create .tmp/styles/main.css (1.124s)
    Compilation took 1.129s

    Done, without errors.

    Execution Time (2014-11-18 10:32:05 UTC)
    compass:server  1.4s  ▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇▇ 100%
    Total 1.4s

Running "autoprefixer:dist" (autoprefixer) task
File .tmp/styles/main.css created.

Running "connect:livereload" (connect) task
Fatal error: listen EADDRNOTAVAIL
`</pre>

今下午跑了两个小时都是

Fatal error: listen EADDRNOTAVAIL

stackoverflow查找无果，最终嫌疑定在端口域名绑定的问题。

解决方案如下，Gruntfile.js的connet：处修改hostname把localhost为127.0.0.1

<pre>`    connect: {
      options: {
        port: 9000,
        // Change this to '0.0.0.0' to access the server from outside.
        hostname: '127.0.0.1',
        livereload: 35729
      },