Проблемма следующего характера Webpack has been initialized using a configuration object that does not match the API schema
Invalid configuration object. Webpack has been initialized using a configuration object that does not match the API schema.
- configuration.module.rules[0] should be one of these:
["..." | object { assert?, compiler?, dependency?, descriptionData?, enforce?, exclude?, generator?, include?, issuer?, issuerLayer?, layer?, loader?, mimetype?, oneOf?, options?, parser?, realResource?, resolve?, resource?, resourceFragment?, resourceQuery?, rules?, scheme?, sideEffects?, test?, type?, use? }, ...]
-> A rule.
Details:
* configuration.module.rules[0].use.loader should be a non-empty string.
-> A loader request.
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const mode = process.env.NODE_ENV || 'development';
const devMode = mode === 'development';
const target = devMode ? 'web' : 'browserslist';
const devtool = devMode ? 'source-map' : undefined;
module.exports = {
mode,
target,
devtool,
devServer: {
port: 8080,
open: true,
hot: true,
contentBase: './static'
},
entry: ["@babel/polyfill", path.resolve(__dirname, "src", "index.js")],
output: {
path: __dirname + "/dist",
clean: true,
filename: "[name].js",
assetModuleFilename: (pathData) => {
const filepath = path
.dirname(pathData.filename)
.split("/")
.slice(1)
.join("/");
return `${filepath}/[name][ext]`;
},
},
watchOptions: {
ignored: /node_modules/,
},
plugins: [
new HtmlWebpackPlugin({
template: "src/index.html",
filename: "index.html",
}),
new HtmlWebpackPlugin({
template: "src/html/uhing.html",
filename: "uhing.html",
}),
new MiniCssExtractPlugin({
filename: "[name].[contenthash].css",
}),
],
module: {
rules: [
{
test: /\.html$/i,
use: {
loader: ['html-loader', 'template-ejs-loader'],
generator: {
filename: "[name].html",
},
},
},
{
test: /\.(c|sa|sc)ss$/i,
use: [
devMode ? "style-loader" : MiniCssExtractPlugin.loader,
"css-loader",
{
loader: "postcss-loader",
options: {
postcssOptions: {
plugins: [require("postcss-preset-env")],
},
},
},
"sass-loader",
],
},
{
test: /\.woff2?$/i,
type: "asset/resource",
generator: {
filename: "fonts/[name][ext]",
},
},
{
test: /\.(jpe?g|png|webp|gif|svg)?$/i,
type: "asset/resource",
generator: {
filename: () => {
return devMode
? "img/[name][ext]"
: "img/[name].[contenthash][ext]";
},
},
use: [
{
loader: "image-webpack-loader",
options: {
mozjpeg: {
progressive: true,
},
optipng: {
enabled: false,
},
pngquant: {
quality: [0.65, 0.9],
speed: 4,
},
gifsicle: {
interlaced: false,
},
webp: {
quality: 75,
},
},
},
],
},
{
test: /\.m?js$/i,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
presets: ["@babel/preset-env"],
},
},
},
],
},
};
Источник: Stack Overflow на русском