直接运行npm install sass-loader npm install node-sass 因为版本不对,各种报错
1.sass淘宝安装镜像:npm config set sass_binary_site https://npm.taobao.org/mirrors/node-sass/
2.npm install sass-loader@7.3.1 --save-dev
3.npm install node-sass@4.14.1
4.npm install element-ui -S