[TOC] # ionic問題匯總： ## 1：ionic app混淆，遇到命令：`ionic serve`時報錯！  先要理解：需要安裝python2.7和vs2012，再把node-sass自己build出來的 解決步驟：1，[關于安裝gulp-sass失敗的問題解決](http://blog.csdn.net/jimmyhandy/article/details/50723174) 2，如果上面都不能解決你的問題，那你的問題很可能是： ~~~ Check that you have the latest gulp-sass version in package.json; It's a dependency of node-sass + required by Ionic, e.g. "dependencies": { "gulp-sass": "^2.3.2" }, Uninstall gulp-sass $ npm uninstall --save-dev gulp-sass Reinstall gulp-sass $ npm install --save-dev gulp-sass@2 There are a large number of issues pertaining to node-sass installation. You may have to rebuild node-sass: $ npm rebuild node-sass ~~~ >參考：http://stackoverflow.com/questions/37207069/error-when-running-ionic-serve-in-ionic-2 總結：我想我可能是因為npm install 了最新的ionic 2，所以有這個問題！