After the webpack runs, the page shows the problem of the server root directory, ask for help urgently!

question : when the project uses the react framework + webpack, to run npm start in the development environment, the page displays a page similar to the server root directory, but the normal file resources are not loaded. Ask for help urgently!
Code :
package.json: 

{
  "name": "project",
  "version": "1.0.0",
  "description": "",
  "main": "bundle.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1",
    "start": "webpack-dev-server --mode development",
    "build": "webpack --mode production"
  },
  "author": "whj",
  "license": "ISC",
  "devDependencies": {
    "antd": "^3.4.1",
    "babel-core": "^6.26.0",
    "babel-loader": "^7.1.4",
    "babel-plugin-import": "^1.7.0",
    "babel-preset-env": "^1.6.1",
    "babel-preset-react": "^6.24.1",
    "css-loader": "^0.28.11",
    "echarts": "^3.8.5",
    "extract-text-webpack-plugin": "^4.0.0-beta.0",
    "file-loader": "^1.1.11",
    "font-awesome": "^4.7.0",
    "handsontable-pro": "^1.14.2",
    "html-webpack-plugin": "^3.2.0",
    "less": "^3.0.1",
    "less-loader": "^4.1.0",
    "react": "^16.3.1",
    "react-dom": "^16.3.1",
    "react-handsontable": "^0.3.1",
    "react-highcharts": "^12.0.0",
    "react-redux": "^5.0.7",
    "react-router-dom": "^4.2.2",
    "redux": "^3.7.2",
    "style-loader": "^0.20.3",
    "url-loader": "^1.0.1",
    "webpack": "^4.5.0",
    "webpack-cli": "^2.0.14",
    "webpack-dev-server": "^3.1.3",
    "whatwg-fetch": "^2.0.4"
  }
}

webpack.config.js: 

var path = require("path");
var ExtractTextPlugin = require("extract-text-webpack-plugin");  //js
var HtmlWebpackPlugin = require("html-webpack-plugin");  //html

module.exports = {
    entry:path.resolve(__dirname, "src/entry.jsx"),
    output:{
        filename:"bundle.js",
        path:path.resolve(__dirname, "./dist")
    },
    resolve: {
        extensions: [".js", ".jsx", ".less", ".css"]
    },
    module: {
        rules: [
            { 
                test: /\.(js|jsx)$/, 
                exclude: /node_modules/,
                loader: "babel-loader" 
            },
            {
                test: /\.css$/,
                use: ExtractTextPlugin.extract("css-loader")  //cssjs
            },
            {
                test: /\.less$/,
                use: ExtractTextPlugin.extract(["css-loader", "less-loader"]) //lesscssjs
            },
            {
                test: /\.(jpg|png|gif)$/,  //
                use: "url-loader?limit=8192&name=img/[name][hash].[ext]" //81928kfile-loader
            },
            {
                test: /\.(woff|woff2|eot|ttf|otf|svg)$/,  //
                use: "url-loader?limit=1024&name=font/[name][hash].[ext]" //10241kfile-loader
            }
        ]
    },
    
    //
    devServer:{
        port: 3000,  //8090
        open:true,  // localhost:8080
        openPage:"-sharp/dispatch/make",  //url
        proxy: {  //
            "/WHP.HydroPower": {
                target: "http://localhost:8080",
                secure: false
            }
        }
    },
    
    plugins: [

        //js
        new ExtractTextPlugin("styles.css"), 

        //html
        new HtmlWebpackPlugin({
            template: __dirname + "/src/index.html", //htmlhtml,bundle.jscss
            favicon: __dirname + "/src/ico/favicon.ico"  //
        })
    ]
}

output of console after npm start: 

PS D:\Shang Gu Project\CQFCS\WPD.CQFHDD> npm start

> project@1.0.0 start D:\Shang Gu Project\CQFCS\WPD.CQFHDD
> webpack-dev-server --mode development

i wds: Project is running at http://localhost:3000/
i wds: webpack output is served from /
i wdm: wait until bundle finished: /
i wdm: Hash: 1df8a4e288d5b0772404
Version: webpack 4.5.0
Time: 12724ms
Built at: 2018-4-16 09:57:35
                                              Asset       Size  Chunks             Chunk Names
      img/errorb5c9b223d7dc40d8f56617c8979d30a2.jpg    103 KiB
   [emitted]
img/side-nav-bgf115cc8f38818b0eaecb82c0e29e34c4.png   99.9 KiB
   [emitted]
         img/bgfe6785fd55248f8c9f27a7c167b00f2e.png   2.01 MiB
   [emitted]
                                          bundle.js    8.1 MiB    main  [emitted]  main
                                         styles.css    945 KiB    main  [emitted]  main
                                        favicon.ico   4.19 KiB
   [emitted]
                                         index.html  291 bytes
   [emitted]
Entrypoint main = bundle.js styles.css
[./node_modules/loglevel/lib/loglevel.js] 7.68 KiB {main} [built]
[./node_modules/react-dom/index.js] 1.33 KiB {main} [built]
[./node_modules/react-redux/es/index.js] 230 bytes {main} [built]
[./node_modules/react/index.js] 190 bytes {main} [built]
[./node_modules/strip-ansi/index.js] 161 bytes {main} [built]
[./node_modules/url/url.js] 22.8 KiB {main} [built]
[./node_modules/webpack-dev-server/client/index.js?http://localhost:3000] (webpack)-dev-server/client?http://localhost:3000 7.75 KiB {main} [built]
[./node_modules/webpack-dev-server/client/overlay.js] (webpack)-dev-server/client/overlay.js 3.58 KiB {main} [built]
[./node_modules/webpack-dev-server/client/socket.js] (webpack)-dev-server/client/socket.js 1.05 KiB {main} [built]
[./node_modules/webpack/hot sync ^\.\/log$] (webpack)/hot sync nonrecursive ^\.\/log$ 170 bytes {main} [built]
[./node_modules/webpack/hot/emitter.js] (webpack)/hot/emitter.js 77 bytes {main} [built]
   [0] multi (webpack)-dev-server/client?http://localhost:3000 ./src/entry.jsx 40 bytes {main} [built]
[./src/container/store/configureStore.js] 471 bytes {main} [built]
[./src/entry.jsx] 736 bytes {main} [built]
[./src/router/routeMap.jsx] 7.33 KiB {main} [built]
    + 1288 hidden modules
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\dist\antd.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/dist/antd.css] ./node_modules/css-loader!./node_modules/antd/dist/antd.css 565 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\button\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/button/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/button/style/index.css 28.7 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\checkbox\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/checkbox/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/checkbox/style/index.css 6.1 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\date-picker\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/date-picker/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/date-picker/style/index.css 43.9 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\grid\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/grid/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/grid/style/index.css 82.4 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\input-number\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/input-number/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/input-number/style/index.css 6.74 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\input\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/input/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/input/style/index.css 10.5 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\layout\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/layout/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/layout/style/index.css 2.99 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\menu\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/menu/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/menu/style/index.css 28 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\message\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/message/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/message/style/index.css 2.28 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\modal\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/modal/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/modal/style/index.css 4.86 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\radio\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/radio/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/radio/style/index.css 7.75 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\select\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/select/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/select/style/index.css 16.4 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\spin\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/spin/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/spin/style/index.css 5.46 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/style/index.css 69.8 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\tabs\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/tabs/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/tabs/style/index.css 16.6 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\time-picker\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/time-picker/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/time-picker/style/index.css 9.25 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\tooltip\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/tooltip/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/tooltip/style/index.css 3.82 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\antd\es\tree\style\index.css:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/antd/es/tree/style/index.css] ./node_modules/css-loader!./node_modules/antd/es/tree/style/index.css 14.6 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\common\public.less:    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/handsontable-pro/dist/handsontable.full.css] ./node_modules/css-loader!./node_modules/handsontable-pro/dist/handsontable.full.css 45.1 KiB {0} [built]
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/common/public.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/common/public.less 5.76 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\bg-gis\style.less:
     1 asset
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/bg-gis/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/bg-gis/style.less 361 bytes {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
    [./node_modules/css-loader/lib/url/escape.js] 448 bytes {0} [built]
    [./src/container/body/bg-gis/bg.png] 88 bytes {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\dispatch\programMaking\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/dispatch/programMaking/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/dispatch/programMaking/style.less 1.17 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\prediction\jobForecast\boundaryFlow\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/boundaryFlow/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/boundaryFlow/style.less 1.11 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\prediction\jobForecast\forecastResult\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/forecastResult/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/forecastResult/style.less 2.26 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\prediction\jobForecast\futureRainfall\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/futureRainfall/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/futureRainfall/style.less 1.1 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\prediction\jobForecast\historyListSearch\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/historyListSearch/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/historyListSearch/style.less 2.41 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\prediction\jobForecast\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/jobForecast/style.less 1.16 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\body\prediction\resultManagement\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/resultManagement/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/body/prediction/resultManagement/style.less 1.82 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\error\style.less:
     1 asset
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/error/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/error/style.less 756 bytes {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
    [./node_modules/css-loader/lib/url/escape.js] 448 bytes {0} [built]
    [./src/container/error/error.jpg] 91 bytes {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\nav\style.less:
     1 asset
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/nav/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/nav/style.less
1.43 KiB {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
    [./node_modules/css-loader/lib/url/escape.js] 448 bytes {0} [built]
    [./src/container/nav/side-nav-bg.png] 97 bytes {0} [built]
Child extract-text-webpack-plugin ../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\extract-text-webpack-plugin\dist ../../../Shang
Gu Project\CQFCS\WPD.CQFHDD\node_modules\css-loader\index.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\node_modules\less-loader\dist\cjs.js!../../../Shang Gu Project\CQFCS\WPD.CQFHDD\src\container\style.less:
    Entrypoint undefined = extract-text-webpack-plugin-output-filename
    [./node_modules/css-loader/index.js!./node_modules/less-loader/dist/cjs.js!./src/container/style.less] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js!./src/container/style.less 803 bytes {0} [built]
    [./node_modules/css-loader/lib/css-base.js] 2.21 KiB {0} [built]
Child html-webpack-plugin for "index.html":
     1 asset
    Entrypoint undefined = index.html
    [./node_modules/html-webpack-plugin/lib/loader.js!./src/index.html] 363 bytes {0} [built]
    [./node_modules/lodash/lodash.js] 527 KiB {0} [built]
    [./node_modules/webpack/buildin/global.js] (webpack)/buildin/global.js 509 bytes {0} [built]
    [./node_modules/webpack/buildin/module.js] (webpack)/buildin/module.js 519 bytes {0} [built]
i wdm: Compiled successfully.

shows that the compilation was successful, but after running it, the page looks like this:

clipboard.png

Environment :
node.js @ 8.11.1
webpack @ 4.5.0
npm @ 5.3.0

has all kinds of Baidu to no avail, the key is the same configuration of the same code, colleagues there can display a normal page. I really can"t find the reason. Please help!

Npm webpack
Mar.09,2021

Webpack4.x you don't need to match output , add publicPath and try again. 

output: {
+    publicPath: '/',
},

webpack4+ has not seen it, but I think your problem lies in the entry or exit of the project. Take a good look at

the problem has been solved. I clone the project to another folder and OK. Is it the reason why there is a space in the previous file name? But thank you for your answers!

I also have the same problem. Clone is not allowed anywhere. What is the situation?

Previous: What does it mean to have an event in the parameters of the method?

Next: How to set it in Android studio 3.0. you can display the classes and functions on the line of the cursor at the top of the code.

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
© 2021 CodesHelper
Advertising Contact us About us
Menu