环境：windows 7 64位
这是我的package.json文件

 {
  "name": "ruiche.com",
  "version": "0.1.0",
  "description":"",
  "devDependencies": {
    "grunt": "~0.4.1",
    "grunt-contrib-compass": "^1.0.1",
    "grunt-contrib-concat": "^0.5.0",
    "grunt-contrib-connect": "^0.8.0",
    "grunt-contrib-uglify": "^0.6.0",
    "grunt-contrib-watch": "^0.6.1"
  },
  "repository":"git://github.com/gruntjs"
}

当我运行的之后就报这个错误……

我试过重装node，也npm cache clear过，还是这样，在线等答案……