use sequential number for chunkFileName in webpack - reactjs

Question

I would like to use a sequential number such as 1.js, 2.js,... for chunkFileName in production mode of webpack v5. I set [index].js for naming but webpack gives me following error:
Error: Conflict: Multiple chunks emit assets to the same filename
[index].js (chunks 179 and 216)
Here's my config for webpack:
var config = {
devtool: 'eval-source-map',
cache: true,
entry: {
main: path.join(__dirname, "app", "App.js"),
},
output: {
path: path.join(__dirname, 'scripts', 'js'),
filename: '[name].js',
chunkFilename: '[name].js',
sourceMapFilename: '[file].map',
publicPath: '/scripts/js/'
},
module: {
rules: [
{
test: /\.js$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
babelrc: false,
presets: [
['es2015', { modules: false }],
'react',
],
plugins: [
'syntax-dynamic-import',
'transform-object-rest-spread',
'transform-class-properties',
'transform-object-assign',
],
}
},
},
{
// Preprocess our own .css files
// This is the place to add your own loaders (e.g. sass/less etc.)
// for a list of loaders, see https://webpack.js.org/loaders/#styling
test: /\.css$/,
exclude: /node_modules/,
use: [
'style-loader',
'css-loader',
]
}
],
},
optimization: {
minimize: false,
splitChunks: {
cacheGroups: {
defaultVendors: {
test: /[\\/]node_modules[\\/]/,
name: "vendors",
chunks: "all"
}
},
}
},
plugins: [
new CompressionPlugin({
algorithm: 'gzip',
test: /\.(js)$|\.(css)$|\.(html)$|\.eot?.+$|\.ttf?.+$|\.woff?.+$|\.svg?.+$/,
//threshold: 10240,
//minRatio: 0
})
],
resolve: {
extensions: ['.js', '.jsx', '.css', '.ts'],
alias: {
'react-loadable': path.resolve(__dirname, 'app/app.js'),
},
},
};
if (process.env.NODE_ENV === 'production') {
const TerserPlugin = require("terser-webpack-plugin");
config.devtool = false;
config.output.chunkFilename = '[index].js';
config.optimization = {
minimize: true,
minimizer: [new TerserPlugin()],
splitChunks: {
cacheGroups: {
vendors: {
test: /[\\/]node_modules[\\/]/,
name: "vendors",
chunks: "all",
}
},
}
},
config.plugins = [
new webpack.optimize.AggressiveMergingPlugin(),
new webpack.DefinePlugin({
'process.env': { NODE_ENV: JSON.stringify('production') }
}),
new CompressionPlugin({
algorithm: 'gzip',
test: /\.(js)$|\.(css)$|\.(html)$|\.eot?.+$|\.ttf?.+$|\.woff?.+$|\.svg?.+$/,
//threshold: 10240,
//minRatio: 0
})
];
}
module.exports = config;
Does anyone know where is the problem? Thank you in advance!

Answer 1

I've found my answer! There is a config for webpack's optimization section which can be set and it gives us a sequential numbers as chunkFileName and its chunkIds which should set to natural. So:
config.optimization = {
chunkIds: "natural",
minimize: true,
minimizer: [new TerserPlugin()],
splitChunks: {
cacheGroups: {
vendors: {
test: /[\\/]node_modules[\\/]/,
name: "vendors",
chunks: "all"
}
},
}
}