Title: jQuery Collision Error
Last modified: August 10, 2017

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# jQuery Collision Error

 *  Resolved [Fuselight Media](https://wordpress.org/support/users/fuselight/)
 * (@fuselight)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/jquery-collision-error/)
 * We recently noticed on a client site that NextGen Gallery was creating an error
   that was stopping our other scripts from working. The error is as follows:
 * Uncaught TypeError: jQuery.easing[jQuery.easing.def] is not a function
 * From file: [http://www.momotion.com/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/lightbox/static/fancybox/jquery.easing-1.3.pack.js?ver=2.2.12](http://www.momotion.com/wp-content/plugins/nextgen-gallery/products/photocrati_nextgen/modules/lightbox/static/fancybox/jquery.easing-1.3.pack.js?ver=2.2.12)
 * We were wondering if this is a simple update that needs to be made or if something
   like could be traced to another script issue? Has this or something like it happened
   before?
 * Note: We are disabling the plugin on the domain, but can re-activate it when 
   it becomes necessary.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fjquery-collision-error%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [Imagely](https://wordpress.org/support/users/imagely/)
 * (@imagely)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/jquery-collision-error/#post-9399300)
 * [@fuselight](https://wordpress.org/support/users/fuselight/) – The error looks
   to be more with one of the Lightbox Effects (Fancybox) we bundle with NextGEN
   Gallery as a convenience. I would suggest looking to see what is triggering this
   conflict and/or switching to a different Lightbox Effect under Gallery > Other
   Options > Lightbox Effects.
 * Thanks!
 * – Cais.
 *  Thread Starter [Fuselight Media](https://wordpress.org/support/users/fuselight/)
 * (@fuselight)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/jquery-collision-error/#post-9402422)
 * Thank you for getting back to us with this, we got it figured out now!
 *  Plugin Contributor [Imagely](https://wordpress.org/support/users/imagely/)
 * (@imagely)
 * [8 years, 10 months ago](https://wordpress.org/support/topic/jquery-collision-error/#post-9402444)
 * [@fuselight](https://wordpress.org/support/users/fuselight/) – Thanks for the
   follow-up.
 * – Cais.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘jQuery Collision Error’ is closed to new replies.

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## Tags

 * [jquery](https://wordpress.org/support/topic-tag/jquery/)

 * 3 replies
 * 2 participants
 * Last reply from: [Imagely](https://wordpress.org/support/users/imagely/)
 * Last activity: [8 years, 10 months ago](https://wordpress.org/support/topic/jquery-collision-error/#post-9402444)
 * Status: resolved