npm install失败:Failed at the node-sass@4.9.3 postinstall script; node-sass@4.9.3 postinstall: `node s

1.更换镜像源:   npm config set sass_binary_site=https://npm.taobao.org/mirrors/node-sass

2.卸载sass:   npm uninstall node-sass

3..重新下载sass注意版本号要对应: npm install node-sass@4.9.3

4.重新npm install