Title: JavaScript error
Last modified: March 20, 2018

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# JavaScript error

 *  [eljefejb](https://wordpress.org/support/users/eljefejb/)
 * (@eljefejb)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/javascript-error-137/)
 * I’m getting this error when trying to regenerate a PDF thumbnail:
 *     ```
       TypeError: t.responseJSON is undefined
       /wp-content/plugins/regenerate-thumbnails/dist/build.js?ver=3.0.2 line 1
       ```
   

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [viper007bond](https://wordpress.org/support/users/viper007bond/)
 * (@viper007bond)
 * [8 years, 2 months ago](https://wordpress.org/support/topic/javascript-error-137/#post-10144188)
 * Just noting that I’ve seen this thread and I think I know what’s wrong. I’ll 
   work on a fix.

Viewing 1 replies (of 1 total)

The topic ‘JavaScript error’ is closed to new replies.

 * ![](https://ps.w.org/regenerate-thumbnails/assets/icon-128x128.png?rev=1753390)
 * [Regenerate Thumbnails](https://wordpress.org/plugins/regenerate-thumbnails/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/regenerate-thumbnails/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/regenerate-thumbnails/)
 * [Active Topics](https://wordpress.org/support/plugin/regenerate-thumbnails/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/regenerate-thumbnails/unresolved/)
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 * 1 reply
 * 2 participants
 * Last reply from: [viper007bond](https://wordpress.org/support/users/viper007bond/)
 * Last activity: [8 years, 2 months ago](https://wordpress.org/support/topic/javascript-error-137/#post-10144188)
 * Status: not resolved