npm错误！代码ELIFECYCLE npm错误！错误2

Question

当我试图在我的命令提示符中运行- npm run dev时，我得到了这个错误：

Insufficient number of arguments or no entry found.
Alternatively, run 'webpack(-cli) --help' for usage info.

Hash: af4cfdb00272137cb4d3
Version: webpack 4.41.5
Time: 60ms
Built at: 02/05/2020 10:38:54 AM

WARNING in configuration
The 'mode' option has not been set, webpack will fallback to 'production' for this value. Set 'mode' option to 'development' or 'production' to enable defaults for each environment.
You can also set it to 'none' to disable any default behavior. Learn more: https://webpack.js.org/configuration/mode/

ERROR in Entry module not found: Error: Can't resolve './src' in 'C:\Users\dahiy\Desktop\Web developer Course\JS - Basics 2\forkit'
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! forkify@1.0.0 dev: `webpack`
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the forkify@1.0.0 dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

这是我的webpack.config.js的样子：

const path = require('path');

module.exports = {
    entry:'./src/js/index.js',
    output: {
        path: path.resolve(__dirname, 'dist/js'),
        filename:'bundle.js'
    }, 
    mode:'development'  
};

这是我的package.json：

{
  "name": "forkify",
  "version": "1.0.0",
  "description": "forkify project",
  "main": "index.js",
  "scripts": {
    "dev": "webpack"
  },
  "author": "Sachin Dahiya",
  "license": "ISC",
  "devDependencies": {
    "webpack": "^4.41.5",
    "webpack-cli": "^3.3.10"
  },
  "dependencies": {}
}

我已经尝试了所有方法来解决这个错误，但没有得到任何解决方案。请帮帮我。在这里附上错误的屏幕截图。error

Answer 1

// webpack.config.js

const path = require('path');

module.exports = {
    entry: path.resolve(__dirname, 'src/js/index.js'),
    output: {
        path: path.resolve(__dirname, 'dist/js'),
        filename:'bundle.js'
    }, 
    mode:'development'  
};

由于您使用的是Windows，看起来问题就在于正反斜杠的混淆

Answer 2

检查文件名中是否有大写字母。在本地机器上运行没有给出错误，但当我在linux上运行时，它给了我一个与上面类似的错误。

我发现了文件名的问题。在执行导入时，我遇到了

从“./ Login”导入登录；

但当我将登录更改为登录时，文件名为Login.js，它适用于我从“./ Login”导入登录。