'Bootstrap - Uncaught TypeError: Cannot read property 'fn' of undefined
I'm using jquery, backbonejs, underscorejs and bootstrap for my company project. Sometimes I got this error in chrome.
Uncaught TypeError: Cannot read property 'fn' of undefined
My shim is like this in my main.js
require.config({
paths: {
jquery: 'libs/jquery/jquery',
underscore: 'libs/underscore/underscore',
backbone: 'libs/backbone/backbone',
backboneeventbinder: 'libs/backbone.eventbinder.min',
bootstrap: 'libs/bootstrap',
jquerytablesorter: 'libs/tablesorter/jquery.tablesorter',
tablesorter: 'libs/tablesorter/tables',
ajaxupload: 'libs/ajax-upload',
templates: '../templates'
},
shim: {
'backbone': {
deps: ['underscore', 'jquery'],
exports: 'Backbone'
},
'underscore': {
exports: '_'
},
}
});
require(['app', ], function(App) {
App.initialize();
});
I already insert .noConflict() for jquery, underscorejs and backbonejs.
My app.js
// Filename: app.js
define(['jquery', 'underscore', 'backbone', 'backboneeventbinder', 'bootstrap', 'ajaxupload', 'router', // Request router.js
], function($, _, Backbone, Bootstrap, Backboneeventbinder, Ajaxupload, Router) {
$.noConflict();
_.noConflict();
Backbone.noConflict();
var initialize = function() {
Router.initialize();
};
return {
initialize: initialize
};
});
This is screenshot from my chrome

Its kind like related to bootstrap.
Thanks a lot in advance.
Solution 1:[1]
solve this issue for angular
"styles": [
"src/styles.css",
"node_modules/bootstrap/dist/css/bootstrap.min.css"
],
"scripts": [
"node_modules/jquery/dist/jquery.min.js",
"node_modules/bootstrap/dist/js/bootstrap.min.js"
]
Solution 2:[2]
My way is importing the jquery library.
<script
src="https://code.jquery.com/jquery-3.3.1.js"
integrity="sha256-2Kok7MbOyxpgUVvAk/HJ2jigOSYS2auK4Pfzbm7uH60="
crossorigin="anonymous"></script>
Solution 3:[3]
To solve this problem just call jQuery file before the bootstrap file
Solution 4:[4]
Import jquery first before bootstrap:
<script src="js/jquery.min.js"></script>
<script src="js/bootstrap.js"></script>
<script src="js/bootstrap.bundle.js"></script>
Solution 5:[5]
//Call .noConflict() to restore JQuery reference.
jQuery.noConflict(); OR $.noConflict();
//Do something with jQuery.
jQuery( "div.class" ).hide(); OR $( "div.class" ).show();
Solution 6:[6]
I went back to jquery-2.2.4.min.js and it works.
Solution 7:[7]
I had the same problem even jquery was added firs but solved it by adding first the jquery synchronously -deleting asynch tag- then bootsrap.
Note: I added async to my jquery tag to load it asynchronously and faced this error so then I changed this:
<script async src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"></script>
<script async src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
crossorigin="anonymous"></script>
<script async src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
crossorigin="anonymous"></script>
to :
<script src="https://code.jquery.com/jquery-3.3.1.slim.min.js"
integrity="sha384-q8i/X+965DzO0rT7abK41JStQIAqVgRVzpbzo5smXKp4YfRvH+8abtTE1Pi6jizo"
crossorigin="anonymous"></script>
<script async src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js"
integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1"
crossorigin="anonymous"></script>
<script async src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js"
integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM"
crossorigin="anonymous"></script>
Now my jquery is loading synchronously and everything is fine.
Solution 8:[8]
I had the same problem. Firefox showed me this error but in chrome everything was OK. then after a google search, i used google cdn for jquery in index.html instead of loading local js file and the problem solved.
Solution 9:[9]
I had the same problem. In my case, I changed all 3 links to other versions of bootstrap and got off from that error. I changed 4.5 to 4.6
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
