环境变量已经配置好了 还是会报错
http://zhidao.baidu.com/link?url=uuXBdp2DCcYahiAm28rr6ZCyydsrFDdon6CP6TODVWLrh4ea0nXegOLtmua5Ny1nKg7LgRadpsXQaxl_hRg-eZuI9wmcBcsI9bsGK0HYLzG
