Cannot read property ‘this compilation’ of undefined appears in copy webpack plugin

Today, I want to copy the pictures of the company’s projects to build / images,

Direct installation

 npm install copy-webpack-plugin --save-dev

, using the latest official documentation

 new CopyPlugin({
      patterns: [
        { from: 'source', to: 'dest' },
        { from: 'other', to: 'public' },
      ],
    }),

However, it is always reported that cannot read property ‘this compilation’ of undefined

The results show that the webpack is “^ 1.13.2” because the company’s projects are older,

So you can reduce the copy webpack plugin version to below 5.0.0, and then use the old writing method

For example, “copy webpack plugin”: “^ 4.6.0”,

ProgrammerAH