运行gulp报错
module.js:339 throw err;
Error: Cannot find module ‘gulp-sass‘
at Function.Module._resolveFilename (module.js:337:15)
at Function.Module._load (module.js:287:25)
at Module.require (module.js:366:17)
at require (module.js:385:17)
at Object.<anonymous> (/Applications/XAMPP/xamppfiles/htdocs/flyscoot.com/gulpfile.js:2:12)
at Module._compile (module.js:435:26)
at Object.Module._extensions..js (module.js:442:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:311:12)
at Module.require (module.js:366:17)解决需要两步：
1.npm update
2.npm install gulp-sass --save-dev in your root folder
---------------gulp-------------
//全局gulp
npm install gulp -g
//项目里通过package.json安装指定模块
npm install