how to configure Ant Design with Webpack 3 - reactjs

Question

Fix and solution:
Thanks to #BoyWithSilver, long story short, here are what I did to fix my problems:
added .less into extensions section
removed unnecessary codes in webpack.config.json e.g. removed the extract-text-webpack-plugin
downgrade less from 3.0.1 to 2.7.0 fixed heaps of errors: length of undefined in index.less file in antd.
Update 3
Here is my package.json
{
"name": "mobx-reactjsx",
"version": "1.0.0",
"description": dfsdfsdfsd",
"scripts": {
"start": "webpack-dev-server --config webpack.config.js --progress --inline",
"lint": "eslint src"
},
"keywords": [
"react",
"reactjs",
"boilerplate",
"mobx",
"starter-kit",
"firebase",
"re-base"
],
"author": "Winston Fan",
"license": "MIT",
"homepage": "https://horizontalvision.azurewebsites.net/",
"devDependencies": {
"autoprefixer": "^8.0.0",
"babel-core": "^6.9.1",
"babel-loader": "^7.1.2",
"babel-plugin-import": "^1.6.4",
"babel-plugin-transform-decorators-legacy": "^1.3.4",
"babel-preset-es2015": "^6.9.0",
"babel-preset-react": "^6.5.0",
"babel-preset-stage-1": "^6.5.0",
"css-loader": "^0.28.9",
"extract-text-webpack-plugin": "^3.0.2",
"less": "^3.0.1",
"less-loader": "^4.0.5",
"less-vars-to-js": "^1.2.1",
"postcss-loader": "^2.1.0",
"style-loader": "^0.20.2",
"webpack": "^3.5.5",
"webpack-dev-server": "^2.7.1"
},
"dependencies": {
"antd": "^3.2.1",
"firebase": "^4.9.1",
"mobx": "^3.5.1",
"mobx-react": "^4.4.1",
"mobx-react-devtools": "^4.2.15",
"re-base": "^3.2.2",
"react": "^16.2.0",
"react-dom": "^16.2.0"
}
}
Update 2:
After removed the context option :
// context: path.resolve(__dirname, 'dist'),
in webpage.config.js
added
javascriptEnabled: true
under less-loader in webpack.config.json
I received these errors.
ERROR in ./node_modules/antd/lib/button/style/index.less Module build
failed:
/* stylelint-disable
declaration-bang-space-before,no-duplicate-selectors */ ^ Cannot read
property 'length' of undefined
in F:\temp\Playground\mobx-reactjsx\node_modules\antd\lib\style\color\bezierEasing.less
(line 1, column -1) # ./node_modules/antd/lib/button/style/index.js
5:0-23 # ./src/index.js # multi
(webpack)-dev-server/client?http://localhost:8080 ./src/index.js
ERROR in ./node_modules/antd/lib/style/index.less Module build failed:
/* stylelint-disable
declaration-bang-space-before,no-duplicate-selectors */ ^ Cannot read
property 'length' of undefined
in F:\temp\Playground\mobx-reactjsx\node_modules\antd\lib\style\color\bezierEasing.less
(line 1, column -1) # ./node_modules/antd/lib/button/style/index.js
3:0-33 # ./src/index.js # multi
(webpack)-dev-server/client?http://localhost:8080 ./src/index.js
ERROR in ./node_modules/antd/lib/style/index.less Module build failed:
ModuleBuildError: Module build failed:
/* stylelint-disable
declaration-bang-space-before,no-duplicate-selectors */ ^ Cannot read
property 'length' of undefined
in F:\temp\Playground\mobx-reactjsx\node_modules\antd\lib\style\color\bezierEasing.less
(line 1, column -1)
at runLoaders (F:\temp\Playground\mobx-reactjsx\node_modules\webpack\lib\NormalModule.js:195:19)
at F:\temp\Playground\mobx-reactjsx\node_modules\loader-runner\lib\LoaderRunner.js:364:11
at F:\temp\Playground\mobx-reactjsx\node_modules\loader-runner\lib\LoaderRunner.js:230:18
at context.callback (F:\temp\Playground\mobx-reactjsx\node_modules\loader-runner\lib\LoaderRunner.js:111:13)
at
at process._tickCallback (internal/process/next_tick.js:169:7) # ./node_modules/antd/lib/style/index.less #
./node_modules/antd/lib/button/style/index.js # ./src/index.js #
multi (webpack)-dev-server/client?http://localhost:8080 ./src/index.js
ERROR in ./node_modules/antd/lib/button/style/index.less Module build
failed: ModuleBuildError: Module build failed:
/* stylelint-disable
declaration-bang-space-before,no-duplicate-selectors */ ^ Cannot read
property 'length' of undefined
in F:\temp\Playground\mobx-reactjsx\node_modules\antd\lib\style\color\bezierEasing.less
(line 1, column -1)
at runLoaders (F:\temp\Playground\mobx-reactjsx\node_modules\webpack\lib\NormalModule.js:195:19)
at F:\temp\Playground\mobx-reactjsx\node_modules\loader-runner\lib\LoaderRunner.js:364:11
at F:\temp\Playground\mobx-reactjsx\node_modules\loader-runner\lib\LoaderRunner.js:230:18
at context.callback (F:\temp\Playground\mobx-reactjsx\node_modules\loader-runner\lib\LoaderRunner.js:111:13)
at
at process._tickCallback (internal/process/next_tick.js:169:7) # ./node_modules/antd/lib/button/style/index.less #
./node_modules/antd/lib/button/style/index.js # ./src/index.js #
multi (webpack)-dev-server/client?http://localhost:8080 ./src/index.js
Child extract-text-webpack-plugin
node_modules/extract-text-webpack-plugin/dist
node_modules/css-loader/index.js!node_modules/less-loader/dist/cjs.js??ref--1-2!node_modules/antd/lib/style/index.less:
[0] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js?{"modifyVars":{"#primary-color":"#193D71"},"root":"F://temp//Playground//mobx-reactjsx","javascriptEnabled":true}!./node_modules/antd/lib/style/index.less
302 bytes {0} [built] [failed] [1 error]
ERROR in ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js?{"modifyVars":{"#primary-color":"#193D71"},"root":"F://temp//Playground//mobx-reactjsx","javascriptEnabled":true}!./node_modules/antd/lib/style/index.less
Module build failed:
/* stylelint-disable declaration-bang-space-before,no-duplicate-selectors */
^
Cannot read property 'length' of undefined
in F:\temp\Playground\mobx-reactjsx\node_modules\antd\lib\style\color\bezierEasing.less
(line 1, column -1) Child extract-text-webpack-plugin
node_modules/extract-text-webpack-plugin/dist
node_modules/css-loader/index.js!node_modules/less-loader/dist/cjs.js??ref--1-2!node_modules/antd/lib/button/style/index.less:
[0] ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js?{"modifyVars":{"#primary-color":"#193D71"},"root":"F://temp//Playground//mobx-reactjsx","javascriptEnabled":true}!./node_modules/antd/lib/button/style/index.less
302 bytes {0} [built] [failed] [1 error]
ERROR in ./node_modules/css-loader!./node_modules/less-loader/dist/cjs.js?{"modifyVars":{"#primary-color":"#193D71"},"root":"F://temp//Playground//mobx-reactjsx","javascriptEnabled":true}!./node_modules/antd/lib/button/style/index.less
Module build failed:
/* stylelint-disable declaration-bang-space-before,no-duplicate-selectors */
^
Cannot read property 'length' of undefined
in F:\temp\Playground\mobx-reactjsx\node_modules\antd\lib\style\color\bezierEasing.less
(line 1, column -1) webpack: Failed to compile.
Update 1:
Here is my webpack.config.json
var path = require('path');
var webpack = require('webpack');
const fs = require('fs');
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const lessToJs = require('less-vars-to-js');
const themeVariables = lessToJs(fs.readFileSync(path.join(__dirname, './scripts/ant-theme-vars.less'), 'utf8'));
module.exports = {
watch: true,
context: path.resolve(__dirname, './src'),
devtool: 'source-map',
entry: [
'./src/index.js'
],
output: {
path: path.resolve(__dirname, './dist'),
filename: '[name].bundle.js'
},
plugins: [
new webpack.HotModuleReplacementPlugin(),
new ExtractTextPlugin('style.css')
],
resolve: {
extensions: ['.js', '.jsx']
},
module: {
rules: [{
test: /\.jsx?$/,
use: ['babel-loader'],
include: path.join(__dirname, 'src')
},
{
test: /\.less$/,
use: ExtractTextPlugin.extract([
{loader: "css-loader"},
{loader: "less-loader",
options: {
modifyVars: themeVariables,
root: path.resolve(__dirname, './')
}
}
])
},
{
test: /\.css$/,
use: ExtractTextPlugin.extract({
use: "css-loader"
})
},]
}
};
now error message becomes:
ERROR in multi (webpack)-dev-server/client?http://localhost:8080
./src/index.js Module not found: Error: Can't resolve './src/index.js'
in '/Users/Winston/tmp/Playground/mobx-reactjsx/src' # multi
(webpack)-dev-server/client?http://localhost:8080 ./src/index.js
(project structure)
I do have index.js under projectfolder/src
I'm trying to integrate Ant Design with Less support and the Import on Demand feature which is here:
https://ant.design/docs/react/use-with-create-react-app
in Advanced Guide section.
In this section, it uses react-app-rewired but my project uses webpack 3(my project is based on this https://github.com/mobxjs/mobx-react-boilerplate), so cannot use the rewired command in my case.
So I found another article:
https://medium.com/#GeoffMiller/how-to-customize-ant-design-with-react-webpack-the-missing-guide-c6430f2db10f
Here is my code:
package.json
"start": "webpack-dev-server --hot --open",
webpack.config.json
const fs = require('fs');
const lessToJs = require('less-vars-to-js');
const themeVariables = lessToJs(fs.readFileSync(path.join(__dirname, './scripts/ant-theme-vars.less'), 'utf8'));
....
module:{
.....
rules:[
.....
test: /\.less$/,
use: [
{loader: "style-loader"},
{loader: "css-loader"},
{loader: "less-loader",
options: {
modifyVars: themeVariables
}
}
]
]
}
index.js
import {Button} from 'antd';
<Button type="primary">Hi!</Button>
.babelrc
{
"presets": [
"react",
"es2015",
"stage-1"
],
"plugins": [
["import", {"libraryName": "antd", "style": true} ],
"transform-decorators-legacy"
]
}
Here is the error messages from console:

Answer 1

For me i just had to use import 'antd/dist/antd.min.css
instead of import 'antd/dist/antd.css
https://github.com/ant-design/ant-design/issues/33327#issuecomment-997355323

Answer 2

The error seems to be coming from the inability to resolve .less files. Adding this to webpack.config.js should help resolve them:
resolve: {
extensions: ['.js', '.jsx', '.less']
},
You have specified context as src folder in the structure. This means the entry has to be changed to ./index.js or just ./index
If you did not mean to have context key, removing it will also do the work.

Answer 3

Webpack configuration (webpack.config.js):
const path = require('path');
const webpack = require('webpack');
const ExtractTextPlugin = require("extract-text-webpack-plugin");
const fs = require('fs');
const lessToJs = require('less-vars-to-js');
const themeVariables = lessToJs(fs.readFileSync(path.join(__dirname, 'ant-theme-vars.less'), 'utf8'));
module.exports = {
watch: true,
context: path.resolve(__dirname, './src'),
entry: {
app: './index.js',
},
output: {
path: path.resolve(__dirname, './dist'),
filename: '[name].bundle.js',
},
devtool: 'source-map',
resolve: {
alias: {
moment: 'moment/src/moment'
},
},
module: {
rules: [
{
test: /.jsx?$/,
loader: 'babel-loader',
exclude: /node_modules/,
query: {
presets: ['env','react','stage-2']
}
},
{
loader: 'babel-loader',
exclude: /node_modules/,
test: /\.js$/,
options: {
presets: ['env','react','stage-2'],
plugins: [
['import', { libraryName: "antd", style: true }]
]
},
},
{
test: /\.scss?$/,
loader: ExtractTextPlugin.extract({
fallback: 'style-loader',
loader: 'css-loader!sass-loader'
})
},
{
test: /\.less$/,
use: ExtractTextPlugin.extract([
{loader: "css-loader"},
{loader: "less-loader",
options: {
modifyVars: themeVariables,
root: path.resolve(__dirname, './')
}
}
])
},
{
test: /\.(woff|woff2|eot|ttf|otf|svg|png|jpg,pdf)$/,
loader: "file-loader"
},
{
test: /\.css$/,
use: ExtractTextPlugin.extract({
fallback: "style-loader",
use: "css-loader"
})
},
]
},
plugins: [
new ExtractTextPlugin('style.css')
],
devServer: {
port: 9000,
contentBase: 'dist'
}
};
And package.json:
{
"name": "ant-design-app",
"version": "1.0.0",
"description": "Ant design",
"main": "index.js",
"scripts": {
"start": "webpack-dev-server --config webpack.config.js --progress --inline",
"build": "webpack -p --config webpack.config.js"
},
"repository": {
"type": "git",
"url": ""
},
"author": "Sivadass",
"license": "MIT",
"dependencies": {
"antd": "^3.1.4",
"moment": "^2.20.1",
"react": "^16.2.0",
"react-dom": "^16.2.0",
},
"devDependencies": {
"babel-core": "^6.24.1",
"babel-loader": "^7.0.0",
"babel-plugin-add-module-exports": "^0.2.1",
"babel-plugin-import": "^1.6.3",
"babel-plugin-transform-decorators-legacy": "^1.3.4",
"babel-preset-env": "^1.6.0",
"babel-preset-react": "^6.24.1",
"babel-preset-stage-2": "^6.24.1",
"css-loader": "^0.28.9",
"extract-text-webpack-plugin": "^2.1.2",
"file-loader": "^0.11.2",
"less": "^2.7.3",
"less-loader": "^4.0.5",
"less-vars-to-js": "^1.2.1",
"node-sass": "^4.7.2",
"postcss-loader": "^2.0.10",
"sass-loader": "^6.0.6",
"style-loader": "^0.18.2",
"sugarss": "^1.0.1",
"webpack": "^3.10.0",
"webpack-dev-server": "^2.11.1"
}
}
Ant theme variables configuration (ant-theme-vars.less):
#primary-color: #4099ff;
#font-size-base: 16px;
#font-family : "Proxima Nova", Helvetica Neue, Helvetica, Arial, sans-serif;
#btn-font-size-lg: 15px;
#btn-padding-lg : 8px 32px;
#btn-padding-sm : 4px 16px;

Answer 4

Solution for React :
in index.js folder
import 'antd/dist/antd.css
replace with
import 'antd/dist/antd.min.css

Answer 5

I just added that import statement into my index.scss file, then the warnings were disappeared
#import "antd/dist/antd.css";