前端项目 npm start 启动报错building modu

building modules 1/1 modules 0 activeevents.js:287                            
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRNOTAVAIL: address not available 27.0.0.1:8090
    at Server.setupListenHandle [as _listen2] (net.js:1296:21)
    at listenInCluster (net.js:1361:12)
    at GetAddrInfoReqWrap.doListen [as callback] (net.js:1500:7)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:69:10)
Emitted 'error' event on Server instance at:
    at emitErrorNT (net.js:1340:8)
    at processTicksAndRejections (internal/process/task_queues.js:84:21) {
  code: 'EADDRNOTAVAIL',
  errno: 'EADDRNOTAVAIL',
  syscall: 'listen',
  address: '27.0.0.1',
  port: 8090
}

错误原因是host配置错误

解决方案：将host:'localhost' 改成host:'127.0.0.1'