unable to locate the plugin list! This most likely indicates an internal error. about happypack HOT 5 OPEN

    config.plugins.push(
        new webpack.DefinePlugin({
            CESIUM_BASE_URL: JSON.stringify('./Cesium/')
        }),
        new CopyWebpackPlugin([
            {
                from: './node_modules/cesium/Build/Cesium',
                to: 'Cesium',
            },
        ]),
        new webpack.ProvidePlugin({
            jQuery: 'jquery',
            $: 'jquery',
        }),
        new HappyPack({
            id: 'happyBabel',
            loaders: [{
                loader: 'babel-loader?cacheDirectory=true',
            }],
            threadPool: happyThreadPool,
            verbose: true,
        })
    );

    if (isProd) {
        config.module.rules.push({
            test: /\.js$/,
            loader: 'happypack/loader?id=happyBabel',
            exclude: /node_modules/
        });
        // 为生产环境修改配置...
        config.optimization = {
            minimizer: [
                new UglifyJsPlugin({
                    terserOptions: {
                        warnings: false,
                        compress: {
                            drop_debugger: true,
                            drop_console: true,
                            pure_funcs: ['console.log'],
                        },
                        output: {
                            comments: false,
                        },
                    },
                    sourceMap: false,
                    parallel: true,
                }),
            ],
            splitChunks: {
                chunks: 'all',
                minSize: 300000,
                maxSize: 10000000,
                cacheGroups: {
                    vendors: {
                        test: /[\\/]node_modules[\\/]/, // 匹配node_modules目录下的文件
                        priority: -10, // 优先级配置项
                    },
                    default: {
                        minChunks: 2,
                        priority: -20, // 优先级配置项
                        reuseExistingChunk: true,
                    },
                },
            },
        };
        config.plugins.push(
            new HtmlWebpackPlugin({
                filename: './index.html',
                template: './public/index.html',
            }),

            new HtmlWebpackTagsPlugin({
                append: false,
                scripts: 'Cesium/Cesium.js',
            }),

            new HtmlWebpackTagsPlugin({
                append: false,
                links: 'Cesium/Widgets/widgets.css',
            }),
            // new BundleAnalyzerPlugin(),
            new CompressionPlugin({
                filename: '[path].gz[query]',
                algorithm: 'gzip',
                test: /\.js$|\.css$|\.html$/,
                threshold: 102400,
                minRatio: 0.8,
                deleteOriginalAssets: true,
            }),
            // new HappyPack({
            //     // 3) re-add the loaders you replaced above in #1:
            //     loaders: [ 'babel-loader?presets[]=es2015' ],
            //     threadPool: happyThreadPool,
            //     id: 'babel'
            //   }),
            // new HappyPack({
            //     //用id来标识 happypack处理那里类文件
            //     id: 'happyBabel',
            //     //如何处理  用法和loader 的配置一样
            //     loaders: [{
            //         loader: 'babel-loader?cacheDirectory=true',
            //     }],
            //     //共享进程池
            //     threadPool: happyThreadPool,
            //     //允许 HappyPack 输出日志
            //     verbose: true,
            // }),
            new ProgressBarPlugin({
                format: ' build [:bar] ' + chalk.green.bold(':percent') + ' (:elapsed seconds)',
                clear: false
            })
        );
    } else {
        // 为开发环境修改配置...
        config.devtool = 'eval-source-map';
        config.plugins.push(
            new HtmlWebpackPlugin({
                filename: './index.html',
                template: './public/index.html',
            }),
            new HtmlWebpackTagsPlugin({
                append: false,
                links: './Cesium/Widgets/widgets.css',
            })
        );
    }
},
chainWebpack: config => {
    const oneOfsMap = config.module.rule('scss').oneOfs.store;
    oneOfsMap.forEach(item => {
        item.use('sass-resources-loader')
            .loader('sass-resources-loader')
            .options({
                resources: './src/style/public.scss',
            })
            .end();
    });
    config
        .plugin('webpack-bundle-nalyzer')
        .use(require('webpack-bundle-analyzer').BundleAnalyzerPlugin);
    return config;
},