Uncaught Error: Bootstrap's JavaScript requires jQuery in a bootstrap website

Change the sequence of Javascript code or reference:-

<!-- JQuery Core JavaScript -->
<script src="lib/js/jquery.min.js"></script>
<script src="lib/js/jquery-ui.min.js"></script>
<!-- Bootstrap Core JavaScript -->
<script src="lib/js/bootstrap.min.js"></script>

or

<script src="js/jquery-1.11.0.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/wow.min.js"></script>

reference:-

  https://www.edureka.co/community/67725/uncaught-error-bootstrap-s-javascript-requires-jquery

https://stackoverflow.com/questions/22658015/bootstrap-throws-uncaught-error-bootstraps-javascript-requires-jquery