序
最近在了解 RSS 订阅 ，所以自然而然的需要去看 RSSHub 。想着先构建一个 Chrom 的扩展程序体验一下 。结果老报错 。
Github 项目 ：https://github.com/DIYgod/RSSHub-Radar
首先需要 down 项目 ，然后在项目目录下面开始 npm 的操作 （因为之前我用过 ReactNative ，所以node npm 都是有的）
在使用 npm run build 的时候遇到一个问题 ，就是 ： Error: Cannot find module 'node-sass'
ERROR in ./src/css/options.scss (./node_modules/css-loader/dist/cjs.js??ref--4-2!./node_modules/postcss-loader/src??ref--4-3!./node_modules/sass-loader/dist/cjs.js!./src/css/options.scss)Module build failed (from ./node_modules/sass-loader/dist/cjs.js):Error: Cannot find module 'node-sass'Require stack:- /Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/getDefaultSassImplementation.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/getSassImplementation.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/index.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/cjs.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/loader-runner/lib/loadLoader.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/loader-runner/lib/LoaderRunner.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack/lib/NormalModule.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack/lib/NormalModuleFactory.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack/lib/Compiler.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack/lib/webpack.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack-cli/bin/utils/validate-options.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack-cli/bin/utils/convert-argv.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack-cli/bin/cli.js- /Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack/bin/webpack.jsat Function.Module._resolveFilename (internal/modules/cjs/loader.js:982:15)at Function.Module._load (internal/modules/cjs/loader.js:864:27)at Module.require (internal/modules/cjs/loader.js:1044:19)at require (/Users/yinzh/android/RSSHub-Radar-master/node_modules/webpack-cli/node_modules/v8-compile-cache/v8-compile-cache.js:161:20)at getDefaultSassImplementation (/Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/getDefaultSassImplementation.js:24:10)at getSassImplementation (/Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/getSassImplementation.js:19:72)at Object.loader (/Users/yinzh/android/RSSHub-Radar-master/node_modules/sass-loader/dist/index.js:40:61)
解决办法：
1.在项目目录cmd下运行 npm install -g cnpm --registry=https://registry.npm.taobao.org
2.下载成功后再运行 cnpm install node-sass
完事之后在进行 npm run build 就可以了 。可以生成 dist文件夹 。