npm run dev启动项目报错

我输入命令 npm run dev之后报这样的错误

> [email protected]1.0.0 dev /Users/zzy/Downloads/projects/mor-brain
> node build/dev-server.js

> Starting dev server...
events.js:177
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE: address already in use :::8008
    at Server.setupListenHandle [as _listen2] (net.js:1226:14)
    at listenInCluster (net.js:1274:12)
    at Server.listen (net.js:1362:7)
    at Function.listen (/Users/zzy/Downloads/projects/mor-brain/node_modules/express/lib/application.js:618:24)
    at Object.<anonymous> (/Users/zzy/Downloads/projects/mor-brain/build/dev-server.js:85:18)
    at Module._compile (internal/modules/cjs/loader.js:774:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:785:10)
    at Module.load (internal/modules/cjs/loader.js:641:32)
    at Function.Module._load (internal/modules/cjs/loader.js:556:12)
    at Function.Module.runMain (internal/modules/cjs/loader.js:837:10)
    at internal/main/run_main_module.js:17:11
Emitted 'error' event at:
    at emitErrorNT (net.js:1253:8)
    at processTicksAndRejections (internal/process/task_queues.js:84:9) {
  code: 'EADDRINUSE',
  errno: 'EADDRINUSE',
  syscall: 'listen',
  address: '::',
  port: 8008
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected]1.0.0 dev: `node build/dev-server.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected]1.0.0 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     /Users/zzy/.npm/_logs/2021-11-01T02_06_10_556Z-debug.log

显示8008端口 地址已经存在

解决方式：
输入命令 lsof -i tcp:8008 查看8008端口对应的pid
再输入 kill pid

再次npm run dev 可以执行成功