npm run dev 失败：ValidationError：无效的选项对象

Question

目前通过一些教程学习Vue js和express js，我对这些技术还是新手。

无论如何，按照教程，我正在构建一个小项目，其中我有一个包含项目前端的文件夹“Client”和另一个包含后端的文件夹“Server”。

就在将提交推送到 Github 之前，一切都很好，但是一旦我这样做了，Github 就会发出一些漏洞，并且在修复它们之后，npm run dev 就不再工作了。

尝试了多种解决方案但没有任何效果，重新安装可疑模块，运行 npm cache clean –force 后重新安装节点模块

这是我得到的错误

   npm run dev

> client@1.0.0 dev D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client
> webpack-dev-server --inline --progress --config build/webpack.dev.conf.js

D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\copy-webpack-plugin\node_modules\schema-utils\dist\validate.js:88
    throw new _ValidationError.default(errors, schema, configuration);
    ^

ValidationError: Invalid options object. Copy Plugin has been initialized using an options object that does not match the API schema.
 - options[0] misses the property 'patterns'. Should be:
   [non-empty string | object { from, to?, context?, globOptions?, toType?, force?, flatten?, transform?, cacheTransform?, transformPath?, noErrorOnMissing? }, ...] (should not have fewer than 1 item)
    at validate (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\copy-webpack-plugin\node_modules\schema-utils\dist\validate.js:88:11)
    at new CopyPlugin (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\copy-webpack-plugin\dist\index.js:24:30)
    at Object.<anonymous> (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\build\webpack.dev.conf.js:61:5)
    at Module._compile (internal/modules/cjs/loader.js:1133:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1153:10)
    at Module.load (internal/modules/cjs/loader.js:977:32)
    at Function.Module._load (internal/modules/cjs/loader.js:877:14)
    at Module.require (internal/modules/cjs/loader.js:1019:19)
    at require (internal/modules/cjs/helpers.js:77:18)
    at WEBPACK_OPTIONS (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\webpack-cli\bin\utils\convert-argv.js:114:13)
    at requireConfig (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\webpack-cli\bin\utils\convert-argv.js:116:6)
    at D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\webpack-cli\bin\utils\convert-argv.js:123:17
    at Array.forEach (<anonymous>)
    at module.exports (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\webpack-cli\bin\utils\convert-argv.js:121:15)
    at Object.<anonymous> (D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client\node_modules\webpack-dev-server\bin\webpack-dev-server.js:84:40)
    at Module._compile (internal/modules/cjs/loader.js:1133:30) {
  errors: [
    {
      keyword: 'required',
      dataPath: '[0]',
      schemaPath: '#/required',
      params: [Object],
      message: "should have required property 'patterns'",
      schema: [Object],
      parentSchema: [Object],
      data: [Object],
      children: [Array]
    }
  ],
  schema: {
    definitions: { ObjectPattern: [Object], StringPattern: [Object] },
    type: 'object',
    additionalProperties: false,
    properties: { patterns: [Object], options: [Object] },
    required: [ 'patterns' ]
  },
  headerName: 'Copy Plugin',
  baseDataPath: 'options',
  postFormatter: null
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! client@1.0.0 dev: `webpack-dev-server --inline --progress --config build/webpack.dev.conf.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the client@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!     C:\Users\iheb\AppData\Roaming\npm-cache_logs\2020-05-21T13_56_52_099Z-debug.log
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! client@1.0.0 start: `npm run dev`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the client@1.0.0 start 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:\Users\iheb\AppData\Roaming\npm-cache_logs\2020-05-21T13_56_52_148Z-debug.log

这是日志文件：

 0 info it worked if it ends with ok
1 verbose cli [
1 verbose cli   'C:\\Program Files\\nodejs\\node.exe',
1 verbose cli   'C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js',
1 verbose cli   'run',
1 verbose cli   'build:server'
1 verbose cli ]
2 info using npm@6.14.4
3 info using node@v12.16.3
4 verbose stack Error: missing script: build:server
4 verbose stack     at run (C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:155:19)
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\lib\run-script.js:63:5
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:116:5
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:436:5
4 verbose stack     at checkBinReferences_ (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:391:45)
4 verbose stack     at final (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:434:3)
4 verbose stack     at then (C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:161:5)
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\read-package-json\read-json.js:281:12
4 verbose stack     at C:\Program Files\nodejs\node_modules\npm\node_modules\graceful-fs\graceful-fs.js:115:16
4 verbose stack     at FSReqCallback.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:63:3)
5 verbose cwd D:\projects\Fullstack web apps\VueJs ExpressJs\tab-tracker\Client
6 verbose Windows_NT 10.0.18362
7 verbose argv "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "run" "build:server"
8 verbose node v12.16.3
9 verbose npm  v6.14.4
10 error missing script: build:server
11 verbose exit [ 1, true ]

运行 npm audit 给出以下结果：

     Moderate        Cross-Site Scripting

  Package         serialize-javascript

  Patched in      >=2.1.1

  Dependency of   uglifyjs-webpack-plugin [dev]

  Path            uglifyjs-webpack-plugin > serialize-javascript

  More info       https://npmjs.com/advisories/1426

相关依赖

“webpack”: “^4.43.0”,

 "webpack-bundle-analyzer": "^3.3.2",

"webpack-cli": "^3.3.11",

"webpack-dev-server": "^3.1.11",

我希望我为你们提供了一切，如果没有，我会立即提供任何东西来帮助澄清我的问题，因为我说过我是 Web 开发的新手。

更新： 我试图找出此类错误背后的原因，更新 webpack-dev-server 版本后会出现问题：

“webpack-dev-server”：“^2.9.1”

有错误的版本：

“webpack-dev-server”：“^3.11.0”

如果我忽略发现的漏洞可以吗？因为尝试修复它们会导致此错误。

谢谢

原文由 Dhouibi iheb 发布，翻译遵循 CC BY-SA 4.0 许可协议

Answer 1

这不是 webpack 或 webpack-dev-server 本身的问题，而是 copy-webpack-plugin 插件的问题。

随着对 6.x 主要版本的更新，出现了一个重大变化：不再只是将带有配置模式的数组直接传递给 CopyWebpackPlugin 构造函数，你现在必须将它包装在 patterns 对象的属性并传递它。

旧语法：

     new CopyWebpackPlugin(
      [
        { from: 'src/xxx.ext', to: 'dist/xxx.ext' },
        { from: 'src/yyy.ext', to: 'dist/yyy.ext' }
      ]
    )

新语法：

     new CopyWebpackPlugin(
      {
        patterns: [
          { from: 'src/xxx.ext', to: 'dist/xxx.ext' },
          { from: 'src/yyy.ext', to: 'dist/yyy.ext' }
        ]
      }
    )

他们这样做是因为构造函数现在支持一个额外的 options 属性： https ://webpack.js.org/plugins/copy-webpack-plugin/#options-1

原文由 opus131 发布，翻译遵循 CC BY-SA 4.0 许可协议