Vue----运行常见问题

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问题1： num run dev 报错

E:\xampp\htdocs\vue\lab\test>npm run dev> test@1.0.0 dev E:\xampp\htdocs\vue\lab\test> node build/dev-server.js> Starting dev server...events.js:160      throw er; // Unhandled 'error' event      ^Error: listen EACCES 0.0.0.0:8080    at Object.exports._errnoException (util.js:1018:11)    at exports._exceptionWithHostPort (util.js:1041:20)    at Server._listen2 (net.js:1245:19)    at listen (net.js:1294:10)    at Server.listen (net.js:1390:5)    at EventEmitter.listen (E:\xampp\htdocs\vue\lab\test\node_modules\_express@4.15.4@express\lib\application.js:618:24)    at Object.<anonymous> (E:\xampp\htdocs\vue\lab\test\build\dev-server.js:83:18)    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:389:7)    at startup (bootstrap_node.js:149:9)    at bootstrap_node.js:504:3npm ERR! Windows_NT 6.1.7601npm ERR! argv "D:\\Program Files\\nodejs\\node.exe" "D:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "dev"npm ERR! node v6.11.1npm ERR! npm  v3.10.10npm ERR! code ELIFECYCLEnpm ERR! test@1.0.0 dev: `node build/dev-server.js`npm ERR! Exit status 1npm ERR!npm ERR! Failed at the test@1.0.0 dev script 'node build/dev-server.js'.npm ERR! Make sure you have the latest version of node.js and npm installed.npm ERR! If you do, this is most likely a problem with the test package,npm ERR! not with npm itself.npm ERR! Tell the author that this fails on your system:npm ERR!     node build/dev-server.jsnpm ERR! You can get information on how to open an issue for this project with:npm ERR!     npm bugs testnpm ERR! Or if that isn't available, you can get their info via:npm ERR!     npm owner ls testnpm ERR! There is likely additional logging output above.npm ERR! Please include the following file with any support request:npm ERR!     E:\xampp\htdocs\vue\lab\test\npm-debug.logE:\xampp\htdocs\vue\lab\test>

Vue 运行端口默认为：8080, 查看错误提示：

Error: listen EACCES 0.0.0.0:8080

处理：一般是端口被占用，修改端口重新运行即可

方式1：修改vue-cli 默认端口：index/config/index.jsdev: {    env: require('./dev.env'),    port: 8008,    autoOpenBrowser: true,    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  }方式2：将其它服务器占用的端口改为另一个端口

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