[TOC] # ionic问题汇总： ## 1：ionic app混淆，遇到命令：`ionic serve`时报错！  先要理解：需要安装python2.7和vs2012，再把node-sass自己build出来的 解决步骤：1，[关于安装gulp-sass失败的问题解决](http://blog.csdn.net/jimmyhandy/article/details/50723174) 2，如果上面都不能解决你的问题，那你的问题很可能是： ~~~ 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 ~~~ >参考：http://stackoverflow.com/questions/37207069/error-when-running-ionic-serve-in-ionic-2 总结：我想我可能是因为npm install 了最新的ionic 2，所以有这个问题！