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ERROR in Entry module not found: Error: Can’t resolve ‘./src’ in ‘E:\ASUS\Documents\VSCode files\WebPackProject’

Specify the entry and exit through the configuration file

webpack. Config. JS (must be in the project root directory)

const path = require('path');

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

Packaging without configuration files

Webpack 4 does not need to create webpack.config.js to configure the entry and exit of the package by default

By default

The entry is ./SRC/index. JS file

The export is ./dist/main. JS file

Directory structure:

Make sure that the entry file /SRC/index. JS is located correctly, and run the command under the project root directory:

webpack

The packaging is complete

At this time, you can see the packaged file main. JS in the dist folder under the project directory

It can be imported correctly in the HTML file index. HTML to be imported

You can also use the following command to specify it manually:
webpack./SRC/index.js -- output file name./dist/main.js -- output path. -- mode development

Or

webpack ./src/index.js -o ./dist/main.js --mode development

Note:
the last -- mode development is to specify the development mode, otherwise, a warning will be given

Another mode is -- mode production to specify the production mode. In this mode, the packaged JS file will be compressed, while the former will not

Therefore, executing webpack above will prompt a warning, and closing the warning can be packaged by the following command:

webpack --mode development

Or

webpack --mode production

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