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  • 关于vue使用 npm run dev报错原因

    > my-project@0.1.0 dev D:my-project
    > webpack-dev-server --inline --progress --config build/webpack.dev.conf.js
    
    internal/modules/cjs/loader.js:796
        throw err;
        ^
    
    Error: Cannot find module 'D:my-projectuildwebpack.dev.conf.js'
    Require stack:
    - D:my-project
    ode_moduleswebpack-cliinutilsconvert-argv.js
    - D:my-project
    ode_moduleswebpack-dev-serverinwebpack-dev-server.js
        at Function.Module._resolveFilename (internal/modules/cjs/loader.js:793:17)
        at Function.Module._load (internal/modules/cjs/loader.js:686:27)
        at Module.require (internal/modules/cjs/loader.js:848:19)
        at require (internal/modules/cjs/helpers.js:74:18)
        at WEBPACK_OPTIONS (D:my-project
    ode_moduleswebpack-cliinutilsconvert-argv.js:114:13)
        at requireConfig (D:my-project
    ode_moduleswebpack-cliinutilsconvert-argv.js:116:6)
        at D:my-project
    ode_moduleswebpack-cliinutilsconvert-argv.js:123:17
        at Array.forEach (<anonymous>)
        at module.exports (D:my-project
    ode_moduleswebpack-cliinutilsconvert-argv.js:121:15)
        at Object.<anonymous> (D:my-project
    ode_moduleswebpack-dev-serverinwebpack-dev-server.js:84:40) {
      code: 'MODULE_NOT_FOUND',
      requireStack: [
        'D:\my-project\node_modules\webpack-cli\bin\utils\convert-argv.js',
        'D:\my-project\node_modules\webpack-dev-server\bin\webpack-dev-server.js'
      ]
    }
    npm ERR! code ELIFECYCLE
    npm ERR! errno 1
    npm ERR! my-project@0.1.0 dev: `webpack-dev-server --inline --progress --config build/webpack.dev.conf.js`
    npm ERR! Exit status 1
    npm ERR!
    npm ERR! Failed at the my-project@0.1.0 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!     C:UsersAdministratorAppDataRoaming
    pm-cache\_logs2020-02-14T13_27_31_418Z-debug.log

    打开package.js文件夹如下:

    {
      "name": "my-project",
      "version": "0.1.0",
      "private": true,
      "scripts": {
        "serve": "vue-cli-service serve",
        "build": "vue-cli-service build",
        "lint": "vue-cli-service lint"
      },
      "dependencies": {
        "core-js": "^3.6.4",
        "vue": "^2.6.11",
        "webpack-cli": "^3.3.10"
      },
      "devDependencies": {
        "@vue/cli-plugin-babel": "~4.2.0",
        "@vue/cli-plugin-eslint": "~4.2.0",
        "@vue/cli-service": "~4.2.0",
        "babel-eslint": "^10.0.3",
        "eslint": "^6.7.2",
        "eslint-plugin-vue": "^6.1.2",
        "vue-template-compiler": "^2.6.11"
      },
      "eslintConfig": {
        "root": true,
        "env": {
          "node": true
        },
        "extends": [
          "plugin:vue/essential",
          "eslint:recommended"
        ],
        "parserOptions": {
          "parser": "babel-eslint"
        },
        "rules": {}
      },
      "browserslist": [
        "> 1%",
        "last 2 versions"
      ]
    }

    发现vue 给咱们提供的启动方式为serve

    于是找到问题所在运行 npm run serve  果然运行成功 如图: