1、出错代码

const path = require('path')
const CleanWebpackPlugin = require('clean-webpack-plugin')
// const { CleanWebpackPlugin } = require('clean-webpack-plugin')

module.exports = {
entry: './input.js',
output: {

path: path.resolve(__dirname, 'dist'),

filename: 'output.bundle.js'
},
mode: 'development',
plugins: [

new CleanWebpackPlugin()
],
module: {

rules: [

{

test: /\.(png|jpg|gif)$/i,

use: [

{

loader: 'url-loader',

options: {

// limit: 8192 // 说明小于8192字节也就是8k才会执行

limit: 919200

}

}

]

}

]
}
}
const path = require('path')
const CleanWebpackPlugin = require('clean-webpack-plugin')
// const { CleanWebpackPlugin } = require('clean-webpack-plugin')

module.exports = {
entry: './input.js',
output: {

path: path.resolve(__dirname, 'dist'),

filename: 'output.bundle.js'
},
mode: 'development',
plugins: [

new CleanWebpackPlugin()
],
module: {

rules: [

{

test: /\.(png|jpg|gif)$/i,

use: [

{

loader: 'url-loader',

options: {

// limit: 8192 // 说明小于8192字节也就是8k才会执行

limit: 919200

}

}

]

}

]
}
}2、错误描述

 [webpack-cli] TypeError: CleanWebpackPlugin is not a constructor

 [webpack-cli] TypeError: CleanWebpackPlugin is not a constructor
3、出错原因
导入插件语句有误，以及使用有误4、解决
应改为如下导入语句：

const { CleanWebpackPlugin } = require('clean-webpack-plugin')



// es modules

import { CleanWebpackPlugin} from 'clean-webpack-plugin';


const { CleanWebpackPlugin } = require('clean-webpack-plugin')



// es modules

import { CleanWebpackPlugin} from 'clean-webpack-plugin';
而在使用时也是，如果都是默认清空dist文件下下的内容的话，默认不需要写参数。和默认删除目录不同时才需要传入路径，且需要通过选项`cleanOnceBeforeBuildPatterns`来传入。
参考 【clean-webpack-plugin】clean-webpack-plugin