[webpack5] Type 'TerserPlugin' is not assignable to optimization.minimizer option

[tjx666]

• Operating System: win10 pro
• Node Version: v12.19.0
• NPM Version: 6.14.8
• webpack Version: ^5.1.0
• terser-webpack-plugin Version: ^4.2.3

Expected Behavior

No TypeScript Error reported.

Actual Behavior

Code

import { argv } from 'yargs';
import { BannerPlugin, Configuration } from 'webpack';
import { merge } from 'webpack-merge';
import TerserPlugin from 'terser-webpack-plugin';
import SpeedMeasurePlugin from 'speed-measure-webpack-plugin';
import { BundleAnalyzerPlugin } from 'webpack-bundle-analyzer';

import commonWebpackConfig from './webpack.common';

const mergedConfiguration: Configuration = merge(commonWebpackConfig, {
    mode: 'production',
    plugins: [
        new BannerPlugin({
            banner:
                '/** @preserve powered by vscode-extension-boilerplate(https://github.com/tjx666/vscode-extension-boilerplate) */',
            raw: true,
        }),
    ],
    optimization: {
        minimize: true,
        minimizer: [
            new TerserPlugin({
                cache: true,
                parallel: true,
                extractComments: false,
            }),
        ],
    },
});

// eslint-disable-next-line import/no-mutable-exports
let prodWebpackConfiguration = mergedConfiguration;
if (argv.analyze) {
    mergedConfiguration.plugins!.push(new BundleAnalyzerPlugin());
    const smp = new SpeedMeasurePlugin();
    prodWebpackConfiguration = smp.wrap(mergedConfiguration);
}

export default prodWebpackConfiguration;

How Do We Reproduce?

Project Address: vscode-extension-boilerplate

[alexander-akait]

Not related to terser-webpack-plugin, we don't have types

[alexander-akait]

You need to wait updating @types

[grantila]

Specifically this DefinitelyTyped/DefinitelyTyped#48806

[brunomarks7]

If do you use Webpack 5, you don't need the terser-webpack-plugin.
https://webpack.js.org/plugins/terser-webpack-plugin/

[ghost]

如果您使用 Webpack 5，则不需要 terser-webpack-plugin。
https://webpack.js.org/plugins/terser-webpack-plugin/

I need to update the terser options