jQuery UI 1.8.13 sudden error

Question

We have been using Jquery from this link http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.13/jquery-ui.min.js for drag and drop. Suddenly we notice it is not working now an

Answer 1

This javascript error is caused by jQuery and jQueryUI being out of sync with each other. Rather than go back to an older version of jQuery, I would update jQuery UI. This link from the jQueryUI blog talks about support for the latest version jQuery. I experienced the same error before updating jQuery UI.