我是nodejs的新手并安装了它。但是 npm start 命令对我来说并不成功。它显示错误

Posted 2023-03-08

【中文标题】我是nodejs的新手并安装了它。但是 npm start 命令对我来说并不成功。它显示错误

【英文标题】：i am new to nodejs and installed it. But npm start command is not success for me. It is showing the errors

【发布时间】：2021-01-28 23:58:40

【问题描述】：

我是 nodejs 的新手并安装了它。但是 npm start 命令对我来说并不成功。它显示错误

C:\Users\Om Namah Shiavay\reactjs>npm start

我在这里运行命令

> reactjs@1.0.0 start C:\Users\Om Namah Shiavay\reactjs
> webpack-dev-server --mode development --open --hot

internal/modules/cjs/loader.js:834
  throw err;
  ^

错误从这里开始

Error: Cannot find module 'webpack-cli/bin/config-yargs'
Require stack:
- C:\Users\Om Namah Shiavay\reactjs\node_modules\webpack-dev-server    \bin\webpack-dev-server.js
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:831:15)
    at Function.Module._load (internal/modules/cjs/loader.js:687:27)
    at Module.require (internal/modules/cjs/loader.js:903:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (C:\Users\Om Namah Shiavay\reactjs\node_modules    \webpack-dev-server\bin\webpack-dev-server.js:65:1)
    at Module._compile (internal/modules/cjs/loader.js:1015:30)
    at Object.Module._extensions..js (internal/modules    /cjs/loader.js:1035:10)
    at Module.load (internal/modules/cjs/loader.js:879:32)
    at Function.Module._load (internal/modules/cjs/loader.js:724:14)
    at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js
:60:12) 

此文件存在于文件夹中

  code: 'MODULE_NOT_FOUND',
  requireStack: [
    'C:\\Users\\Om Namah Shiavay\\reactjs\\node_modules\\webpack-dev-server\\bin\\webpack-dev-server.js'
  ]

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! reactjs@1.0.0 start: `webpack-dev-server --mode development --open --ho
t`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the reactjs@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\Om Namah Shiavay\AppData\Roaming\npm-cache\_logs\2020-10-1
5T14_54_15_617Z-debug.log

C:\Users\Om Namah Shiavay\reactjs>npm install --save-dev webpack-dev-server ^Ar

【问题讨论】：

错误清楚地说：Error: Cannot find module 'webpack'

这能回答你的问题吗？ Error: Cannot find module 'webpack'

但是 webpack 安装在“node_modules”文件夹中

【参考方案1】：

尝试删除 node_modules 和 package-lock.json，然后重新安装包（在您的 powershell 上运行以下命令）

rm node_modules -r -force

rm package-lock.json

npm cache verify

npm install