启动webpack失败 events.js:183 throw er; // Unhandled 'error' event

> missmake@1.0.0 dev /git_project/wxLiveBackstage/TwoDevelopment
> cross-env NODE_ENV=development webpack-dev-server --open --hot

events.js:183
      throw er; // Unhandled 'error' event
      ^

Error: listen EADDRINUSE 127.0.0.1:8081
    at Object._errnoException (util.js:1024:11)
    at _exceptionWithHostPort (util.js:1046:20)
    at Server.setupListenHandle [as _listen2] (net.js:1351:14)
    at listenInCluster (net.js:1392:12)
    at GetAddrInfoReqWrap.doListen [as callback] (net.js:1501:7)
    at GetAddrInfoReqWrap.onlookup [as oncomplete] (dns.js:97:10)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! missmake@1.0.0 dev: `cross-env NODE_ENV=development webpack-dev-server --open --hot`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the missmake@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/VolitationXiaoXing/.npm/_logs/2018-05-08T02_24_59_872Z-debug.log

端口被占用了,


cross-env NODE_ENV=development webpack-dev-server –open –hot
改成

cross-env NODE_ENV=development webpack-dev-server –open –hot –port 1234

–port 1234

随便加一个端口号就行了

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