Title: JavaScript error due to outdated jquery.datables.min.js
Last modified: February 25, 2022

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# JavaScript error due to outdated jquery.datables.min.js

 *  Resolved [penhtech](https://wordpress.org/support/users/penhtech/)
 * (@penhtech)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/javascript-error-due-to-outdated-jquery-datables-min-js/)
 * We are seeing a JS error of “jQuery.Deferred exception: aa is undefined u/</<
   @https://<mysite>.com/app/plugins/tablepress/js/jquery.datatables.min.js?ver=
   1.14:97:134”
 * When I manually download a new datatables.min.js (guessing at which settings 
   to use) and replace the contents of the existing jquery.datatables.min.js with
   those of the newly downloaded file, the error disappears and everything SEEMS
   to work OK.
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fjavascript-error-due-to-outdated-jquery-datables-min-js%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Author [Tobias Bäthge](https://wordpress.org/support/users/tobiasbg/)
 * (@tobiasbg)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/javascript-error-due-to-outdated-jquery-datables-min-js/#post-15405560)
 * Hi,
 * thanks for your post, and sorry for the trouble.
 * This error is not actually related to the DataTables script version.
 * Instead, the problem is that your table is using the `#colspan#` keyword to merge/
   combine table cells. Such cells are however not supported by DataTables.
    In 
   your case, everything should work fine again after removing the `#colspan#` keywords
   from all table cells.
 * Regards,
    Tobias
 *  Thread Starter [penhtech](https://wordpress.org/support/users/penhtech/)
 * (@penhtech)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/javascript-error-due-to-outdated-jquery-datables-min-js/#post-15408231)
 * I apologize for wasting your time. It has been a few years and many websites 
   ago since I built this site, and I completely forgot–as did the user–that datatables
   should not even be enabled for exactly that reason. At some point, they apparently
   forgot that, and it is indeed the pages that use such tables where the error 
   is occurring. I use the datatables library on several other non-WordPress sites
   so it just did not register with me. Thanks for the fast response, as always.
 *  Thread Starter [penhtech](https://wordpress.org/support/users/penhtech/)
 * (@penhtech)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/javascript-error-due-to-outdated-jquery-datables-min-js/#post-15408234)
 * Replying again just so I can mark this resolved.
 *  Plugin Author [Tobias Bäthge](https://wordpress.org/support/users/tobiasbg/)
 * (@tobiasbg)
 * [4 years, 3 months ago](https://wordpress.org/support/topic/javascript-error-due-to-outdated-jquery-datables-min-js/#post-15408892)
 * Hi,
 * no problem, you are very welcome! 🙂 Good to hear that this helped!
 * Best wishes,
    Tobias   P.S.: In case you haven’t, please rate TablePress [here](https://wordpress.org/support/plugin/tablepress/reviews/#new-post)
   in the plugin directory. Thanks!

Viewing 4 replies - 1 through 4 (of 4 total)

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 * 4 replies
 * 2 participants
 * Last reply from: [Tobias Bäthge](https://wordpress.org/support/users/tobiasbg/)
 * Last activity: [4 years, 3 months ago](https://wordpress.org/support/topic/javascript-error-due-to-outdated-jquery-datables-min-js/#post-15408892)
 * Status: resolved