webpack.config with font-awesome - reactjs

I am going to use fontawesome 5 in my source code, but I have some trouble here.
I've installed 4 npm modules.
"#fortawesome/fontawesome-free": "^5.11.2",
"#fortawesome/fontawesome-svg-core": "^1.2.25",
"#fortawesome/free-solid-svg-icons": "^5.11.2",
"#fortawesome/react-fontawesome": "^0.1.7",
webpack.config.js
'use strict';
/**
* Webpack Config
*/
const path = require('path');
const fs = require('fs');
const FriendlyErrorsWebpackPlugin = require('friendly-errors-webpack-plugin');
// const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
// Webpack uses `publicPath` to determine where the app is being served from.
// In development, we always serve from the root. This makes config easier.
const publicPath = '/';
// Make sure any symlinks in the project folder are resolved:
const appDirectory = fs.realpathSync(process.cwd());
const resolveApp = relativePath => path.resolve(appDirectory, relativePath);
// plugins
const HtmlWebPackPlugin = require("html-webpack-plugin");
const MiniCssExtractPlugin = require("mini-css-extract-plugin");
const CleanWebpackPlugin = require('clean-webpack-plugin');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const OptimizeCSSAssetsPlugin = require("optimize-css-assets-webpack-plugin");
const CopyWebpackPlugin = require('copy-webpack-plugin');
// the path(s) that should be cleaned
let pathsToClean = [
'dist',
'build'
]
// the clean options to use
let cleanOptions = {
root: __dirname,
verbose: false, // Write logs to console.
dry: false
}
module.exports = {
entry: ["babel-polyfill", "react-hot-loader/patch", "./src/index.js"],
output: {
// The build folder.
path: resolveApp('build'),
// Generated JS file names (with nested folders).
// There will be one main bundle, and one file per asynchronous chunk.
// We don't currently advertise code splitting but Webpack supports it.
filename: 'assets/js/[name].[hash:8].js',
chunkFilename: 'assets/js/[name].[hash:8].chunk.js',
// We inferred the "public path" (such as / or /my-project) from homepage.
publicPath: publicPath,
hotUpdateChunkFilename: 'hot/hot-update.js',
hotUpdateMainFilename: 'hot/hot-update.json'
},
devServer: {
contentBase: './src/index.js',
compress: true,
port: 3000, // port number
historyApiFallback: true,
quiet: true
},
// resolve alias (Absolute paths)
resolve: {
alias: {
Components: path.resolve(__dirname, 'src/components/'),
Containers: path.resolve(__dirname, 'src/containers/'),
Assets: path.resolve(__dirname, 'src/assets/'),
Util: path.resolve(__dirname, 'src/util/'),
Routes: path.resolve(__dirname, 'src/routes/'),
Constants: path.resolve(__dirname, 'src/constants/'),
Redux: path.resolve(__dirname, 'src/redux/'),
Data: path.resolve(__dirname, 'src/data/')
}
},
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
use: {
loader: "babel-loader"
}
},
{
test: /\.html$/,
use: [
{
loader: "html-loader",
options: { minimize: true }
}
]
},
{
test: /\.css$/,
use: [MiniCssExtractPlugin.loader, "css-loader"]
},
// Scss compiler
{
test: /\.scss$/,
use: [
MiniCssExtractPlugin.loader,
"css-loader",
"sass-loader"
]
}
]
},
optimization: {
minimizer: [
new UglifyJsPlugin({
cache: true,
parallel: true,
uglifyOptions: {
compress: false,
ecma: 6,
mangle: true
},
sourceMap: true
}),
new OptimizeCSSAssetsPlugin({})
]
},
performance: {
hints: process.env.NODE_ENV === 'production' ? "warning" : false
},
plugins: [
new CopyWebpackPlugin([
{ from: 'src/assets/img', to: 'assets/img' }, { from: 'src/assets/fonts', to: 'assets/fonts' }
]),
new FriendlyErrorsWebpackPlugin(),
new CleanWebpackPlugin(pathsToClean, cleanOptions),
new HtmlWebPackPlugin({
template: "./public/index.html",
filename: "./index.html",
favicon: './public/favicon.ico'
}),
new MiniCssExtractPlugin({
filename: "assets/css/[name].[hash:8].css"
}),
new MiniCssExtractPlugin({
filename: "[name].[hash:8].css",
chunkFilename: "[id].[hash:8].css"
})
]
};
And I've got below error when I wrote import '#fortawesome/fontawesome-free/css/solid.css';
Failed to compile with 1 errors 3:21:04 AM
error in ./node_modules/#fortawesome/fontawesome-free/css/solid.css
Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleParseError: Module parse failed: Unexpected character ' ' (1:0)
You may need an appropriate loader to handle this file type, currently no loaders are configured to process this file. See https://webpack.js.org/concepts#loaders
(Source code omitted for this binary file)
at handleParseError (E:\workspace\pulse\projectai-pulse-survey\node_modules\webpack\lib\NormalModule.js:469:19)
at doBuild.err (E:\workspace\pulse\projectai-pulse-survey\node_modules\webpack\lib\NormalModule.js:503:5)
at runLoaders (E:\workspace\pulse\projectai-pulse-survey\node_modules\webpack\lib\NormalModule.js:358:12)
at E:\workspace\pulse\projectai-pulse-survey\node_modules\loader-runner\lib\LoaderRunner.js:373:3
at iterateNormalLoaders (E:\workspace\pulse\projectai-pulse-survey\node_modules\loader-runner\lib\LoaderRunner.js:214:10)
at Array.<anonymous> (E:\workspace\pulse\projectai-pulse-survey\node_modules\loader-runner\lib\LoaderRunner.js:205:4)
at Storage.finished (E:\workspace\pulse\projectai-pulse-survey\node_modules\webpack\node_modules\enhanced-resolve\lib\CachedInputFileSystem.js:55:16) at provider (E:\workspace\pulse\projectai-pulse-survey\node_modules\webpack\node_modules\enhanced-resolve\lib\CachedInputFileSystem.js:91:9)
at E:\workspace\pulse\projectai-pulse-survey\node_modules\graceful-fs\graceful-fs.js:115:16
at FSReqWrap.readFileAfterClose [as oncomplete] (internal/fs/read_file_context.js:53:3)
# ./src/components/MyMap/KGraph/index.js 17:0-54
# ./src/components/MyMap/index.js
# ./src/routes/mymap/index.js
# ./src/routes/index.js
# ./src/containers/App.js
# ./src/App.js
# ./src/index.js
# multi babel-polyfill react-hot-loader/patch ./src/index.js
I've tried to many ways to solve this, but all are failed.
Please help me.

In my case in file-loader or url-loader instead of testing for only image file extentions, I've also added font extentions like this:
module: {
rules: [
{
test: /\.(png|svg|jpg|jpeg|gif|woff|woff2|eot|ttf|)$/i,
use: [
{
loader: "file-loader",
options: {//your options},
}
// ...other loaders here
],
},
]
}

Try to change the import of the ‘CSS’ file to import ’'~#fortawesome/fontawesome-free/css/solid.css'’, as suggested here.

Solved!
I've added the below codes to webpack.config.js
module: {
rules: [
...
{
test: /\.(png|woff|woff2|eot|ttf|svg)$/,
loader: 'url-loader?limit=100000'
}
]
}
Thanks

Related

Webpack running through grunt webpack doesn't error or complete, or do anything

Trying to convert an old system off bower into npm using webpack, and grunt webpack. Just trying to use webpack to load in NPM files, not run anything else, and the rest of the grunt file finishes loading and uglifying and stuff, and runs its own node server. It gets to this point and freezes and never comes back.
Loading "grunt-webpack" plugin
Registering "/Users/***/***/***/node_modules/grunt-webpack/tasks" tasks.
Loading "webpack-dev-server.js" tasks...OK
+ webpack-dev-server
Loading "webpack.js" tasks...OK
+ webpack
Running "webpack" task
Here's my grunt code (super basic obviously)
webpack: {
options: require("./config/webpack.dev.js"),
},
Here's that dev file
const webpack = require('webpack');
const helpers = require('./helpers');
const merge = require('webpack-merge');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const { BaseHrefWebpackPlugin } = require('base-href-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const ConcatPlugin = require('webpack-concat-plugin');
const ngInventory = require('./ng1-vendor-index.js');
const common = require('./webpack.common.js');
const ENV = process.env.NODE_ENV = process.env.ENV = 'dev';
module.exports = merge(common(ENV), {
devtool: 'source-map',
module: {
rules: [
{
test: /\.(ts|js)$/,
loaders: ['angular-router-loader'],
},
{
test: /\.((s*)css)$/,
use: [{
loader: 'style-loader',
},{
loader: 'css-loader',
},{
loader: 'sass-loader',
}]
},
{
test: /src\/.+\.(ts|js)$/,
exclude: /(node_modules|\.spec\.ts$)/,
loader: 'istanbul-instrumenter-loader',
enforce: 'post',
options: {
esModules: true
}
}
]
},
debug: true,
devTool: 'eval',
plugins: [
new ConcatPlugin({
uglify: false,
sourceMap: true,
name: 'vendor',
outputPath: './',
fileName: '[name].[hash].js',
filesToConcat: ngInventory.vendor1
}),
new BaseHrefWebpackPlugin({ baseHref: '/'}),
new HtmlWebpackPlugin({
favicon: helpers.root('client/assets/image/favicon.png'),
template: "./client/index.html",
filename: "./client/index.html",
}),
new webpack.NoEmitOnErrorsPlugin(),
],
});
And here is the common file:
const path = require('path');
const webpack = require('webpack');
const nodeExternals = require('webpack-node-externals')
const helpers = require('./helpers');
module.exports = env => ({
entry: {
server: './server/app.js',
},
resolve: {
extensions: ['.ts', '.js']
},
output: {
path: helpers.root(`dist/${env}`),
publicPath: '/',
filename: '[name].js'
},
target: 'node',
node: {
// Need this when working with express, otherwise the build fails
__dirname: false, // if you don't put this is, __dirname
__filename: false, // and __filename return blank or /
},
externals: [nodeExternals()],
module: {
rules: [
{
// Transpiles ES6-8 into ES5
test: /\.js$/,
exclude: /node_modules/,
use: {
loader: "babel-loader"
}
},
{
test: /\.html$/,
include: [
helpers.root('client'),
],
loader: 'html-loader'
},
{
test: /\.((s*)css)%/,
include: [
helpers.root('client/app'),
helpers.root('client/components'),
],
exclude: 'node_modules/',
loaders: ['to-string-loader', 'css-loader', 'sass-loader']
},
{
test: /\.(woff|woff2|eot|tts)$/,
use: [{
loader: 'file-loader'
}]
}
]
},
plugins: [
new webpack.DefinePlugin({
'process.env': {
'ENV': JSON.stringify(env)
}
}),
new webpack.ContextReplacementPlugin(/\#angular(\\|\/)core(\\|\/)esm5/, path.join(__dirname, './client')),
]
});
A sample from the vendor index file:
const helper = require('./helpers');
exports.vendor1 = [
helper.root('node_modules/lodash/lodash.js'),
helper.root('node_modules/lodash-deep/lodash-deep.js'),
...
...
]
I'm just really not sure what to do, couldn't bring up any google results or stack results because theres no errors happening either. I've tried all verbose levels of logging all to no avail. What in the world am I missing?
As the documentation shows, you haven't configured any targets, like dev or prod. You've only specified options. You want
webpack: {
options: {},
dev: require("./config/webpack.dev.js"),
},
As an aside, there's no benefit to using Webpack with Grunt.

Webpack 2/React: cannot get style to work

I've been stuck here for hours now - can't include my style in development mode with webpack.config.js, and can't bundle my styles when I build my project with webpack.config.prod.js - or inject the style link into the generated index-template.html. Instead, no css file is generated - and the generated html file does not include style tag:
I've done this in other React/Webpack projects with no problems, where identical configuration results in both style tag and bundled css file:
I don't understand where I am going wrong .. this is my folder structure:
This is my webpack.config.js file:
const webpack = require('webpack');
const path = require('path');
const entry = [
'babel-polyfill',
'webpack-dev-server/client?http://127.0.0.1:8080', // Specify the local server port
'webpack/hot/only-dev-server', // Enable hot reloading
'./scripts/index.js' // Where webpack will be looking for entry index.js file
];
const output = {
path: path.join(__dirname, 'dist'), // This is used to specify folder for producion bundle
publicPath: '/dist',
filename: 'bundle.min.js' // Filename for production bundle
}
const plugins = [
new webpack.HotModuleReplacementPlugin(), // Hot reloading
new webpack.NoEmitOnErrorsPlugin(), // Webpack will let you know if there are any errors
// Declare global variables
new webpack.ProvidePlugin({
React: 'react',
ReactDOM: 'react-dom',
_: 'lodash'
})
]
const config = {
context: path.join(__dirname, 'src'),
entry: entry,
devtool: 'inline-source-map',
devServer: {
historyApiFallback: true, // This will make the server understand "/some-link" routs instead of "/#/some-link"
},
output: output,
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
include: path.join(__dirname, 'src'),
use: {
loader: "babel-loader"
}
},
{
test: /\.(sass|scss)$/,
use: [
'style-loader',
'css-loader',
'sass-loader'
]
}
]
},
plugins: plugins
}
module.exports = config;
and this is my webpack.config.prod.js file:
const webpack = require('webpack');
const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const entry = [
'./scripts' // Where webpack will be looking for entry index.js file
];
const output = {
path: path.join(__dirname, 'dist'), // This is used to specify folder for producion bundle
publicPath: '/dist',
filename: 'bundle.min.js' // Filename for production bundle
}
const plugins = [
new webpack.HotModuleReplacementPlugin(), // Hot reloading
new webpack.NoEmitOnErrorsPlugin(), // Webpack will let you know if there are any errors
// Declare global variables
new webpack.ProvidePlugin({
React: 'react',
ReactDOM: 'react-dom',
_: 'lodash'
}),
new ExtractTextPlugin({
disable: false,
filename: 'bundle.css',
allChunks: true
}), // extract you css into seperate file files to serve your webpack bundles
new HtmlWebpackPlugin({
filename: 'index.html',
template: './index.html',
hash: false,
inject: true,
minify: {
removeComments: true,
collapseWhitespace: true,
removeRedundantAttributes: true,
useShortDoctype: true,
removeEmptyAttributes: true,
removeStyleLinkTypeAttributes: true,
keepClosingSlash: true,
minifyJS: true,
minifyCSS: true,
minifyURLs: true,
}
}),
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
},
sourceMap: true
}),
new webpack.optimize.CommonsChunkPlugin({
name: 'bundle',
filename: 'bundle.common.js'
})
]
const config = {
context: path.join(__dirname, 'src'),
entry: entry,
devtool: 'source-map',
devServer: {
historyApiFallback: true, // This will make the server understand "/some-link" routs instead of "/#/some-link"
},
output: output,
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
include: path.join(__dirname, 'src'),
use: {
loader: "babel-loader"
}
},
{
test: /\.(sass|scss)$/,
use: ExtractTextPlugin.extract({
fallback: 'style-loader',
use: [
'css-loader',
{
loader: 'postcss-loader',
options: {
plugins: (loader) => [ require('autoprefixer')() ]
}
},
'sass-loader',
]
})
}
]
},
plugins: plugins
}
module.exports = config;
I am so effing thankful for any input <3
As #margaretkru said, I had forgotten to import my app.scss in my index.js file!

material-ui.dropzone: You may need an appropriate loader to handle this file type

Integrating material-ui-dropzone in my React app, I got this error:
./~/material-ui-dropzone/src/index.jsx Module parse failed:
...\client\node_modules\material-ui-dropzone\src\index.jsx Unexpected
token (123:26) You may need an appropriate loader to handle this file
type. SyntaxError: Unexpected token (123:26)
Here is my webpack configuration:
const Path = require('path'); const HtmlWebpackPlugin = require('html-webpack-plugin'); const Webpack = require('webpack'); const ExtractTextPlugin = require('extract-text-webpack-plugin');
module.exports = (options) => { const ExtractSASS = new ExtractTextPlugin(`/styles/${options.cssFileName}`);
const webpackConfig = {
devtool: options.devtool,
entry: [
`webpack-dev-server/client?http://localhost:${+ options.port}`,
'webpack/hot/dev-server',
Path.join(__dirname, '../src/app/index'),
],
output: {
path: Path.join(__dirname, '../dist'),
filename: `/scripts/${options.jsFileName}`,
},
resolve: {
extensions: ['', '.js', '.jsx'],
},
module: {
loaders: [{
test: /.jsx?$/,
include: Path.join(__dirname, '../src/app'),
loader: 'babel',
}],
},
plugins: [
new Webpack.DefinePlugin({
'process.env': {
NODE_ENV: JSON.stringify(options.isProduction ? 'production' : 'development'),
},
"global.GENTLY": false
}),
new HtmlWebpackPlugin({
template: Path.join(__dirname, '../src/index.html'),
}),
],
node: {
__dirname: true,
},
};
if (options.isProduction) {
webpackConfig.entry = [Path.join(__dirname, '../src/app/index')];
webpackConfig.plugins.push(
new Webpack.optimize.OccurenceOrderPlugin(),
new Webpack.optimize.UglifyJsPlugin({
compressor: {
warnings: false,
},
}),
ExtractSASS
);
webpackConfig.module.loaders.push({
test: /\.scss$/,
loader: ExtractSASS.extract(['css', 'sass']),
}); } else {
webpackConfig.plugins.push(
new Webpack.HotModuleReplacementPlugin()
);
webpackConfig.module.loaders.push({
test: /\.scss$/,
loaders: ['style', 'css', 'sass'],
});
webpackConfig.devServer = {
contentBase: Path.join(__dirname, '../'),
hot: true,
port: options.port,
inline: true,
progress: true,
historyApiFallback: true,
stats: 'errors-only',
}; }
return webpackConfig;
};
Babel config file is:
{
"presets": ["react", "es2015", "stage-1"]
}
It is the only library I had problems with. Any idea where might be the problem?
if you are using webapck#3.x
Try to modify your babel loader to
module: {
rules: [
{
test: /\.jsx?$/,
include: Path.join(__dirname, '../src/app'),
use: {
loader: 'babel-loader',
options: {
presets: ["react", "es2015", "stage-1"],
}
}
}
]
}
You can reference here https://webpack.js.org/loaders/babel-loader/
Noted that in your loader config, write babel-loader instead of just babel. Also make sure if you have npm install the right babel npm packages to the devDependencies, which depends on your webpack version.
If it does not solve your problem, paste your package.json file so i can get to know your webpack version.
Cheers.

React, WebPack and Babel for Internet Explorer 10 and below produces SCRIPT1002: Syntax error

I've read multiple threads regarding similar issues and tried some propositions, but had no results.
I've followed few tutorials related to React.js and WebPack 3. As the result the application is working well on all browsers (at this moment) except IE 10 and below. The error points to bundle.js (once I'm using the configuration Nr.1):
SCRIPT1002: Syntax error and the line - const url = __webpack_require__(83);
With configuration Nr2., on local server - : SCRIPT1002: Syntax error - line with eval()
And the same configuration, but running on remote server produces a bit different error:
SCRIPT5009: 'Set' is undefine
WebPack configuration Nr1.:
const HtmlWebpackPlugin = require('html-webpack-plugin');
const HtmlWebpackPluginConfig = new HtmlWebpackPlugin({
template: './index.html',
filename: 'index.html',
inject: 'body'
})
module.exports = {
entry: './index.js',
output: {
filename: 'bundle.js'
},
module: {
loaders: [
{
test: /\.json$/,
exclude: /node_modules/,
loader: 'json-loader'
},
{
test: /\.css$/,
loader: "style-loader!css-loader"
}
],
rules: [
{
test: /\.js$/,
exclude: /(node_modules)/,
use: {
loader: 'babel-loader',
options: {
presets: ['env', 'react']
}
}
}
]
},
devServer: {
historyApiFallback: true,
contentBase: './'
},
plugins: [HtmlWebpackPluginConfig]
}
WebPack configuration Nr2.:
const path = require('path');
const webpack = require('webpack');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const PreloadWebpackPlugin = require('preload-webpack-plugin');
const ScriptExtHtmlWebpackPlugin = require('script-ext-html-webpack-plugin');
const StyleExtHtmlWebpackPlugin = require('style-ext-html-webpack-plugin');
const CompressionPlugin = require('compression-webpack-plugin');
const autoprefixer = require('autoprefixer');
const staticSourcePath = path.join(__dirname, 'static');
const sourcePath = path.join(__dirname);
const buildPath = path.join(__dirname, 'dist');
module.exports = {
stats: {
warnings: false
},
devtool: 'cheap-eval-source-map',
devServer: {
historyApiFallback: true,
contentBase: './'
},
entry: {
app: path.resolve(sourcePath, 'index.js')
},
output: {
path: path.join(__dirname, 'dist'),
filename: '[name].[chunkhash].js',
publicPath: '/'
},
resolve: {
extensions: ['.webpack-loader.js', '.web-loader.js', '.loader.js', '.js', '.jsx'],
modules: [
sourcePath,
path.resolve(__dirname, 'node_modules')
]
},
plugins: [
new webpack.DefinePlugin({
'process.env.NODE_ENV': JSON.stringify('production')
}),
new webpack.optimize.ModuleConcatenationPlugin(),
new webpack.optimize.CommonsChunkPlugin({
name: 'vendor',
filename: 'vendor.[chunkhash].js',
minChunks: Infinity
}),
new webpack.LoaderOptionsPlugin({
options: {
postcss: [
autoprefixer({
browsers: [
'last 3 version',
'ie >= 10'
]
})
],
context: staticSourcePath
}
}),
new webpack.HashedModuleIdsPlugin(),
new HtmlWebpackPlugin({
template: path.join(__dirname, 'index.html'),
path: buildPath,
excludeChunks: ['base'],
filename: 'index.html',
minify: {
collapseWhitespace: true,
collapseInlineTagWhitespace: true,
removeComments: true,
removeRedundantAttributes: true
}
}),
new PreloadWebpackPlugin({
rel: 'preload',
as: 'script',
include: 'all',
fileBlacklist: [/\.(css|map)$/, /base?.+/]
}),
new webpack.NoEmitOnErrorsPlugin(),
new CompressionPlugin({
asset: '[path].gz[query]',
algorithm: 'gzip',
test: /\.js$|\.css$|\.html$|\.eot?.+$|\.ttf?.+$|\.woff?.+$|\.svg?.+$/,
threshold: 10240,
minRatio: 0.8
})
],
module: {
rules: [
{
test: /\.(js|jsx)$/,
exclude: /node_modules/,
use: {
loader: 'babel-loader',
options: {
presets: ['env', 'react', 'es2015'],
plugins: ["transform-es2015-arrow-functions"]
}
},
include: sourcePath
},
{
test: /\.css$/,
exclude: /node_modules/,
use: ExtractTextPlugin.extract({
fallback: 'style-loader',
use: [
{ loader: 'css-loader', options: { minimize: true } },
'postcss-loader',
'sass-loader'
]
})
},
{
test: /\.(eot?.+|svg?.+|ttf?.+|otf?.+|woff?.+|woff2?.+)$/,
use: 'file-loader?name=assets/[name]-[hash].[ext]'
},
{
test: /\.(png|gif|jpg|svg)$/,
use: [
'url-loader?limit=20480&name=assets/[name]-[hash].[ext]'
],
include: staticSourcePath
}
]
}
};
Here additionally I've added the es2015 to presets: ['env', 'react', 'es2015'] and plugins: ["transform-es2015-arrow-functions"] but it made no sense.
Well in case when the babel loader won't work at all of misconfiguration or something else, I think that the whole application won't start. I believe that something should be done with presets or their order... Need advice from experienced developer
UPDATE
I've changed devtool to inline-cheap-module-source-map and got error point to overlay.js -> const ansiHTML = require('ansi-html');
In your package.json file
change the version of webpack-dev-server to version "2.7.1" (or earlier).
"webpack-dev-server": "2.7.1"
Then do a npm install et voilà.
That solved the problem for me.
All versions after 2.7.1 gives me an error similar to yours.
Simply add devtools : "source-map" to your Webpack config like this:
const path = require('path');
module.exports = {
devtool: "source-map",
entry: ['babel-polyfill', path.resolve(__dirname, './js/main.js')],
mode: 'production',
output: {
path: __dirname+'/js/',
filename: 'main-webpack.js'
}
};
This will remove eval and change your source map to be supported by IE.
UPDATE I've changed devtool to inline-cheap-module-source-map and got error point to overlay.js -> const ansiHTML = require('ansi-html');
And to support ES6 syntax you have to compile your JavaScript code with Babel.

React error even after using DefinePlugin

I am using React 15.4.2 and Redux 3.6.0 with Webpack and this is my webpack.config.js file contents: (some of the code is omitted for brevity)
const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const HTMLWebpackPlugin = require('html-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');
const ExtractTextWebpackPlugin = require('extract-text-webpack-plugin');
const FaviconsWebpackPlugin = require('favicons-webpack-plugin');
const pkg = require('./package.json');
const TARGET = process.env.npm_lifecycle_event;
const PATHS = {
src: path.join(__dirname, 'src/js'),
dist: path.join(__dirname, 'dist')
};
process.env.BABEL_ENV = TARGET;
const common = {
resolve: {
extensions: ['', '.js', '.jsx']
},
entry: {
app: PATHS.src
},
output: {
path: PATHS.dist,
publicPath: '/',
filename: '[name].[hash].js'
},
module: {
loaders: [
{ test: /\.jsx?$/, loaders: ['babel?cacheDirectory'], include: PATHS.src },
{ test: /\.scss$/, exclude: /node_modules/, loaders: ['style', 'css', 'sass'] },
{ test: /(\.ttf|\.woff2?|\.eot|\.svg)(\?v=[0-9]\.[0-9]\.[0-9])?$/, exclude: /node_modules/, loader: 'url' },
{ test: /\.(jpe?g|png|gif|svg)$/i, exclude: /node_modules/, loader: 'url?limit=10000!img?progressive=true' },
{ test: /\.json/, loaders: ['json']}
]
},
plugins: [
new HTMLWebpackPlugin({
template: 'src/index.html',
inject: 'body'
})
]
};
if (TARGET === 'build') {
module.exports = merge(common, {
entry: {
vendor: Object.keys(pkg.dependencies)
},
output: {
path: PATHS.dist,
filename: '[name].[chunkhash].js',
chunkFilename: '[chunkhash].js'
},
module: {
loaders: [
{ test: /\.css$/, loader: ExtractTextWebpackPlugin.extract('style', 'css'), include: PATHS.src }
]
},
plugins: [
new webpack.DefinePlugin({
'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'production')
}),
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false
}
}),
new CleanWebpackPlugin([PATHS.dist]),
new ExtractTextWebpackPlugin('[name].[chunkhash].css'),
new webpack.optimize.CommonsChunkPlugin({
names: ['vendor', 'manifest']
})
]
});
}
Running npm run build gives the minified code. But it still gives the error
Warning: It looks like you're using a minified copy of the development build of React. When deploying React apps to production, make sure to use the production build which skips development warnings and is faster. See https://facebook.github.io/react/docs/optimizing-performance.html#use-the-production-build for more details.
I have also tried reordering the plugins in build TARGET, but its giving the same error.
What am I missing here?
P.S. Redux gives the same minification error too.
EDIT
This is my package.json build script:
"scripts": {
...
"build": "NODE_ENV=production webpack --progress"
...
}
EDIT #2
This is the output to a console.log statement from within the application.
You could use this syntax for the DefinePlugin.
new webpack.DefinePlugin({
'process.env':{
'NODE_ENV': JSON.stringify('production')
}
}),
I enabled source maps to see that its a package I have been using that was minified using non-standard ways. So, setting NODE_ENV to 'production' had no effect on the said package. Nevertheless, my Webpack config and my build scripts have been working perfectly fine. Thank you for your help guys!

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