This usually happens because your environment has changed si

[4/8] ? node-sass
error E:webstorm_workspacehzl-adminnode_modulesnode-sass: Command failed.
Exit code: 1
Command: node scripts/build.js

　　

此时运行按照提示执行  npm rebuild node-sass  命令，（如若不行，则先运行npm install node-sass命令执行）

 

然后再运行 node命令，启动服务。