Topic: Error: Uncaught TypeError: Cannot assign to read only property 'exports' of object '#<Object>'
Support_Net15 asked 4 years ago
Hello,
After importing MDB Pro into my project by following the documentation on this link
"https://mdbootstrap.com/docs/standard/pro/installation/"
Knowing that I am on symfony 5 and I use Webpack Encore, the version of node I use 12.18.3 and npm -v 14.8, the build run fine without error, on the other hand on all browsers, I have the following error
Uncaught TypeError: Cannot assign to read only property 'exports' of object '#<Object>'
at Object.<anonymous> (mdb.js:9192)
at Object.<anonymous> (mdb.js:9195)
at n (mdb.js:36)
at Module.<anonymous> (mdb.js:20789)
at n (mdb.js:36)
at Object.<anonymous> (mdb.js:9091)
at n (mdb.js:36)
at mdb.js:70
at Object.<anonymous> (mdb.js:26)
at Object../node_modules/mdbootstrap-pro/js/mdb.js (vendors~appGlobalFrontend.js:2)
I did some research on the forum and I couldn't find a solution to my problem, please tell me what to do to resolve this problem.
My configuration files:
appGlobalFrontend.scss
@import "~mdbootstrap-pro/css/bootstrap.min.css";
@import "~@fortawesome/fontawesome-free/css/all.css";
@import '~mdbootstrap-pro/css/mdb.min.css';
appGlobalFrontend.js
import $ from 'mdbootstrap-pro/js/jquery';
import 'mdbootstrap-pro/js/popper'
import 'mdbootstrap-pro/js/bootstrap';
import * as mdb from 'mdbootstrap-pro/js/mdb'
require('@fortawesome/fontawesome-free/js/all.js');
import '../scss/appGlobalFrontend.scss';
webpack.config.js
var Encore = require('@symfony/webpack-encore');
const CopyPlugin = require('copy-webpack-plugin');
const TerserJsPlugin = require('terser-webpack-plugin');
// Manually configure the runtime environment if not already configured yet by the "encore" command.
// It's useful when you use tools that rely on webpack.config.js file.
if (!Encore.isRuntimeEnvironmentConfigured()) {
Encore.configureRuntimeEnvironment(process.env.NODE_ENV || 'dev');
}
Encore
// directory where compiled assets will be stored
.setOutputPath('public/build/')
// public path used by the web server to access the output path
.setPublicPath('/build')
/*
* ENTRY CONFIG
*
* Add 1 entry for each "page" of your app
* (including one that's included on every page - e.g. "app")
*
* Each entry will result in one JavaScript file (e.g. app.js)
* and one CSS file (e.g. app.css) if your JavaScript imports CSS.
*/
.addEntry('appGlobalBackend', './assets/js/appGlobalBackend.js',
{
preload: true,
defer: true,
minimizer: true
}
)
.addEntry('appGlobalFrontend', './assets/js/appGlobalFrontend.js',
{
preload: true,
defer: true,
minimizer: true
}
)
// When enabled, Webpack "splits" your files into smaller pieces for greater optimization.
.splitEntryChunks()
// will require an extra script tag for runtime.js
// but, you probably want this, unless you're building a single-page app
.enableSingleRuntimeChunk()
/*
* FEATURE CONFIG
*
* Enable & configure other features below. For a full
* list of features, see:
* https://symfony.com/doc/current/frontend.html#adding-more-features
*/
.cleanupOutputBeforeBuild()
.enableBuildNotifications()
.enableSourceMaps(!Encore.isProduction())
// enables hashed filenames (e.g. app.abc123.css)
.enableVersioning(Encore.isProduction())
// enables @babel/preset-env polyfills
.configureBabelPresetEnv((config) => {
config.useBuiltIns = 'usage';
config.corejs = 3;
})
// enables Sass/SCSS support
.enableSassLoader(function (sassOptions){}, {
resolveUrlLoader:false
})
// Generate icons for different mobile
.addPlugin(
new CopyPlugin({
patterns: [
{from: './assets/media/icons', to: 'icons'},
{from: './assets/media/logo', to: 'logo'},
{from: './assets/media/images', to: 'images'},
]
}),
)
// uncomment if you're having problems with a jQuery plugin
.autoProvidejQuery()
.autoProvideVariables({
$: 'jquery',
jQuery: 'jquery',
'window.jQuery': 'jquery',
})
// Configure terser-webpack-plugin
.configureTerserPlugin((options) => {
options.cache = true;
options.parallel = true;
options.terserOptions = {
output: {
comments: false,
},
}
})
// uncomment if you use API Platform Admin (composer req api-admin)
//.enableReactPreset()
//.addEntry('admin', './assets/js/admin.js')
;
const webpackConfig = Encore.getWebpackConfig();
// Add the new TerserSsPlugin object
webpackConfig.plugins.push(new TerserJsPlugin());
module.exports = webpackConfig;
Thanks.
mcwnuq answered 3 years ago
Hi, have you fixed this? Just upgraded from 4.7.7 to 4.19.2 and have this issue.
Mikołaj Smoleński staff commented 3 years ago
We still don't officially support Symfony.
Keep coding, Mikołaj from MDB
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Answered
- User: Free
- Premium support: No
- Technology: MDB jQuery
- MDB Version: 4.19.1
- Device: Any
- Browser: Chrome, Firefox
- OS: Ubuntu 20
- Provided sample code: No
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Grzegorz Bujański staff commented 4 years ago
Have you tried to import mdb.min.js replacement modules? Check out this thread: https://mdbootstrap.com/support/jquery/latest-version-of-mdb-not-compatible-with-webpack/ it can help you.