npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! node-sass@4.9.2 postinstall: `node scripts/build.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the node-sass@4.9.2 postinstall script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

出现上述错误是因为node版本和node-sass版本不匹配

查看你的node版本

# node -v

根据下图对应表 安装你的node版本 或者改变node-sass版本

image.png