The SplitChunksPlugin configuration of webpack4 does not take effect.

Vue,App,router, is introduced into both entry files, but the package is not extracted. Is there anything wrong with the configuration? See Code

< H2 > three.js < / H2 >

import Vue from "vue"
import App from "./App"
import router from "./router"
Vue.config.productionTip = true
/* eslint-disable no-new */
new Vue({
    el: "-sharpapp",
    router,
    components: { App },
    template: "<App/>"
})

< H2 > main.js < / H2 >

import Vue from "vue"
import App from "./App"
import router from "./router"
Vue.config.productionTip = true
/* eslint-disable no-new */
new Vue({
    el: "-sharpapp",
    router,
    components: { App },
    template: "<App/>"
})

< H2 > webpack.config.js < / H2 >

"use strict"
const path = require("path")
const HtmlWebpackPlugin = require("html-webpack-plugin")
const VueLoaderPlugin = require("vue-loader/lib/plugin")
const CleanWebpackPlugin = require("clean-webpack-plugin")
const CopyWebpackPlugin = require("copy-webpack-plugin")
const webpack = require("webpack")
const ZopfliPlugin = require("zopfli-webpack-plugin")
const utils = require("./build/utils")
// const BundleAnalyzerPlugin = require("webpack-bundle-analyzer").BundleAnalyzerPlugin
module.exports = {
    context: path.resolve(__dirname, "./"),
    devtool: "inline-source-map",
    mode: "development",
    resolve: {
        extensions: [".js", ".vue"],
        alias: {
            "@": path.resolve(__dirname, "src"),
            "vue$": "vue/dist/vue.esm.js"
        }
    },
    entry: {
        test: "./src/main.js",
        three: "./src/three.js"},
    output: {
        filename: "[name].bundle.js",
        path: path.resolve(__dirname, "dist")
    },
    module: {
        rules: [
            {
                test: /\.js$/,
                loader: "eslint-loader",
                enforce: "pre",
                include: path.resolve(__dirname, "src"),
                options: {
                    formatter: require("eslint-friendly-formatter")
                },
                exclude: /node_modules/
            },
            {
                test: /\.js$/,
                loader: "babel-loader",
                include: path.resolve(__dirname, "src"),
                exclude: /node_modules/
            },
            {
                test: /\.vue$/,
                loader: "vue-loader",
                include: path.resolve(__dirname, "src"),
                exclude: /node_modules/
            },
            {
                test: /\.(png|jpe?g|gif|svg)(\?.*)?$/,
                loader: "url-loader",
                options: {
                    limit: 10,
                    name: utils.assetsPath("img/[name].[hash:7].[ext]")
                }
            },
            {
                test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)(\?.*)?$/,
                loader: "url-loader",
                options: {
                    limit: 10000
                }
            },
            {                       
                test: /\.(woff2?|eot|ttf|otf)(\?.*)?$/,
                loader: "url-loader",
                options: {
                    limit: 10000
                }   
            },
            {
                test: /\.css$/,
                use: [
                    "vue-style-loader",
                    {
                        loader: "css-loader",
                        options: { importLoaders: 1 }
                    },
                    "postcss-loader"
                ]
            },
            {  
                test: /\.(htm|html)$/i,  
                use:[ "html-withimg-loader"]   
            } 
        ]
    },
    plugins: [
        new VueLoaderPlugin(),
        new HtmlWebpackPlugin({
            filename: "index.html",  
            inject: true,  
            template: "index.html",  
            chunks: ["test"],  
            inlineSource: ".(js|css)$" 
        }),
        new HtmlWebpackPlugin({
            inject: true,  
            filename: "three.html",  
            template: "three.html",  
            chunks: ["three"],  
            inlineSource: ".(js|css)$" 
        }),
        new webpack.HotModuleReplacementPlugin(),
        new webpack.optimize.SplitChunksPlugin({
            chunks: "all",
            name: true
        })
        // new BundleAnalyzerPlugin()
    ]
}

{ entry: {}, output: {}, module: [], plugins: [], optimization = { splitChunks: { chunks: "all", minSize: 0, name: 'common', minChunks: 1, } } }