错误代码如下：

vue-project@1.0.0 dev E:MySoftwaretestGitwebpackvue-projectnode build/dev-server.js "8088"events.js:160  throw er; // Unhandled 'error' event  ^Error: listen EACCES 0.0.0.0:8080at Object.exports._errnoException (util.js:1026:11)at exports._exceptionWithHostPort (util.js:1049:20)at Server._listen2 (net.js:1244:19)at listen (net.js:1293:10)at Server.listen (net.js:1389:5)at EventEmitter.listen (E:\MySoftware\testGit\webpack\vue-project\node_modules\express\lib\application.js:617:24)at Object.
     
       (E:\MySoftware\testGit\webpack\vue-project\build\dev-server.js:62:22)at Module._compile (module.js:570:32)at Object.Module._extensions..js (module.js:579:10)at Module.load (module.js:487:32)at tryModuleLoad (module.js:446:12)at Function.Module._load (module.js:438:3)at Module.runMain (module.js:604:10)at run (bootstrap_node.js:394:7)at startup (bootstrap_node.js:149:9)at bootstrap_node.js:509:3
     

解决方案：

网上找很多帖子，都没有写解决办法，自己来喽，也是神奇的错误

最后，神奇的是，错误居然被哦改好了

解决办法

进入 vue-demo/config/index.js

dev: {    env: require('./dev.env'),    port: 8088,        # 注意了啊。。。修改成你要的端口，接着运行代码就看到效果了    assetsSubDirectory: 'static',    assetsPublicPath: '/',    proxyTable: {},    // CSS Sourcemaps off by default because relative paths are "buggy"    // with this option, according to the CSS-Loader README    // (https://github.com/webpack/css-loader#sourcemaps)    // In our experience, they generally work as expected,    // just be aware of this issue when enabling this option.    cssSourceMap: false  }

然后运行就变成8088端口了。