Title: javascript error since last update
Last modified: September 1, 2022

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# javascript error since last update

 *  Resolved [chocofc1](https://wordpress.org/support/users/chocofc1/)
 * (@chocofc1)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/javascript-error-since-last-update/)
 * Hi, I am getting this javascript error in the console:
 *     ```
       Uncaught (in promise) TypeError: right-hand side of 'in' should be an object, got undefined
   
       in classic.js:1:70143
   
       value https://web.com/wp-content/plugins/seo-by-rank-math/assets/admin/js/classic.js?ver=1.0.96:1
   
       Backbone 9
   
       clickSelect https://web.com/wp-includes/js/media-views.min.js?ver=6.0.2:2
       ```
   
 * It happens when adding a featured image to a post.
 * Please fix, thank you
    -  This topic was modified 3 years, 7 months ago by [chocofc1](https://wordpress.org/support/users/chocofc1/).
    -  This topic was modified 3 years, 7 months ago by [chocofc1](https://wordpress.org/support/users/chocofc1/).

Viewing 1 replies (of 1 total)

 *  Plugin Support [Rank Math Support](https://wordpress.org/support/users/rankmathteam/)
 * (@rankmathteam)
 * [3 years, 7 months ago](https://wordpress.org/support/topic/javascript-error-since-last-update/#post-15972445)
 * Hello [@chocofc1](https://wordpress.org/support/users/chocofc1/),
 * Thank you for contacting the support and sorry for any inconvenience that might
   have been caused due to that.
 * **Assuming you are using the latest version of all the plugins and the themes(
   please update if not yet)**, it would seem like a conflict with one of the plugins
   or the theme you are using.
 * To determine that, please follow this troubleshooting guide:
    [https://rankmath.com/kb/check-plugin-conflicts/](https://rankmath.com/kb/check-plugin-conflicts/)
 * Here is a video you can follow as well:
 * **Only the site admin would know and your users won’t be affected by this troubleshooting.**
 * Let us know how that goes. Looking forward to helping you.

Viewing 1 replies (of 1 total)

The topic ‘javascript error since last update’ is closed to new replies.

 * ![](https://ps.w.org/seo-by-rank-math/assets/icon.svg?rev=3438330)
 * [Rank Math SEO – AI SEO Tools to Dominate SEO Rankings](https://wordpress.org/plugins/seo-by-rank-math/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/seo-by-rank-math/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/seo-by-rank-math/)
 * [Active Topics](https://wordpress.org/support/plugin/seo-by-rank-math/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/seo-by-rank-math/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/seo-by-rank-math/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Rank Math Support](https://wordpress.org/support/users/rankmathteam/)
 * Last activity: [3 years, 7 months ago](https://wordpress.org/support/topic/javascript-error-since-last-update/#post-15972445)
 * Status: resolved