错误：找不到模块 - webpack-dev-server.js答案

【问题标题】：Error: Cannot find module - webpack-dev-server.js错误：找不到模块 - webpack-dev-server.js
【发布时间】：2020-09-30 18:17:52
【问题描述】：

我正在从头开始构建一个 React 应用程序。通常，我正在运行 npm create-react-app，它会为您生成所有内容。我正在关注本教程https://www.youtube.com/watch?v=deyxI-6C2u4&ab_channel=TraversyMedia，它的描述中有 GitHub 存储库。问题是 - 当我运行“npm start”时它应该运行这个命令

webpack-dev-server --mode development --open --hot

这里写在package.json中

"scripts": {
    "start": "webpack-dev-server --mode development --open --hot",
    "build": "./node_modules/.bin/webpack --mode production"
  },

如果我手动运行该命令，但使用 npm start，它会给出以下错误

PS D:\React&Webpack4 boilerplate> npm start

> react-webpack4-boilerplate@1.0.0 start D:\React&Webpack4 boilerplate
> webpack-dev-server --mode development --open --hot

'Webpack4' is not recognized as an internal or external command,
operable program, or batch file.
internal/modules/cjs/loader.js:968
  throw err;
  ^

Error: Cannot find module 'D:\...\webpack-dev-server.js'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:965:15)
    at Function.Module._load (internal/modules/cjs/loader.js:841:27)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
    at internal/main/run_main_module.js:17:47 {
  code: 'MODULE_NOT_FOUND',
  requireStack: []
}
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! react-webpack4-boilerplate@1.0.0 start: `webpack-dev-server --mode development --open --hot`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the react-webpack4-boilerplate@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\***\AppData\Roaming\npm-cache\_logs\2020-09-30T18_11_15_755Z-debug.log

【问题讨论】：

您遇到了 webpack 的路径设置问题
我猜它安装在节点模块中

标签： javascript reactjs npm webpack webpack-dev-server

【解决方案1】：

全局安装并尝试将 webpack 路径添加到局部变量。

【讨论】：

【解决方案2】：

我在上面遇到了同样的问题。您可以尝试以下方法：

"scripts": {
    "start": "webpack-dev-server --open --hot",
    "build": "./node_modules/.bin/webpack --mode production"
  },

【讨论】：