好久没写博文了，今天抽空写一写，最近在用vue.js build 项目，今早想使用sass来编译css,可是安装好依赖包之后仍然显示一下错误：

ERROR in ENOENT: no such file or directory, scandir '/Users/baidu/Documents/mydata/hfutoj/node_modules/.npminstall/node-sass/3.8.0/node-sass/vendor' @ ./~/vue-style-loader!./~/css-loader!./~/vue-loader/lib/style-rewriter.js!./~/.npminstall/sass-loader/4.0.0/sass-loader!./~/vue-loader/lib/selector.js?type=style&index=0!./src/components/footer.vue 4:14-273 13:2-17:4 14:20-279

　　我vue component 里面是这样用的：

　我心想不应该啊，我依赖包都安装了，需要的依赖包是：node-sass ,sass-loader,vue-style-loader，css-loader，分析了下，觉得是node-sass没安装好，所以我就卸载了node-sass，然后又重新安装（注意cnpm是需要使用npm安装的，这个好像是淘宝的镜像，比较快）：

npm remove node-sasscnpm install node-sass

　　package.json里是这样写的：

{  "name": "hfutoj",  "version": "1.0.0",  "description": "oj for hfut",  "author": "hfuter",  "private": true,  "scripts": {    "dev": "node build/dev-server.js",    "build": "node build/build.js",    "test": ""  },  "dependencies": {    "vue": "^1.0.21",    "babel-runtime": "^6.0.0",    "semantic-ui": "*"  },  "devDependencies": {    "babel-core": "^6.0.0",    "babel-loader": "^6.0.0",    "babel-plugin-transform-runtime": "^6.0.0",    "babel-preset-es2015": "^6.0.0",    "babel-preset-stage-2": "^6.0.0",    "babel-register": "^6.0.0",    "connect-history-api-fallback": "^1.1.0",    "css-loader": "^0.23.0",    "eventsource-polyfill": "^0.9.6",    "express": "^4.13.3",    "extract-text-webpack-plugin": "^1.0.1",    "file-loader": "^0.8.4",    "function-bind": "^1.0.2",    "html-webpack-plugin": "^2.8.1",    "http-proxy-middleware": "^0.12.0",    "json-loader": "^0.5.4",    "less": "^2.7.1",    "less-loader": "^2.2.3",    "node-sass": "^3.7.0",    "ora": "^0.2.0",    "sass-loader": "^4.0.0",    "shelljs": "^0.6.0",    "url-loader": "^0.5.7",    "vue-hot-reload-api": "^1.2.0",    "vue-html-loader": "^1.0.0",    "vue-loader": "^8.3.0",    "vue-style-loader": "^1.0.0",    "webpack": "^1.12.2",    "webpack-dev-middleware": "^1.4.0",    "webpack-hot-middleware": "^2.6.0",    "webpack-merge": "^0.8.3"  }}

　　但是，仍然报错，为毛？我发现重装之后错误并没有变，仍然是.npminstall 下面的文件没被找到，所以.npminstall（这是个隐藏文件）下的文件并没有被卸载，所以我决定把整个node_modules删除了再重装（cnpm install），之后就好了，不过我把ndoe-sass的版本号由3.8.0换成了3.7.0