Title: Yoast SEO | Javascript Error
Last modified: April 13, 2023

---

# Yoast SEO | Javascript Error

 *  Resolved [yogeshbarot15](https://wordpress.org/support/users/yogeshbarot15/)
 * (@yogeshbarot15)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/yoast-seo-javascript-error/)
 *     ```wp-block-code
       Dear Concern,
   
       I am not able to access my Yoast SEO settings on Edit Page. I am facing javascript error in console.
   
       The errors are below:
   
       Uncaught TypeError: Cannot read properties of undefined (reading 'SlotFillProvider')
   
       at classic-editor.js?ver=ff2a08cf309522fdc93ffd19f7311587:227:5806
   
       at window.yoast.initEditorIntegration (classic-editor.js?ver=ff2a08cf309522fdc93ffd19f7311587:227:6127)
   
       at HTMLDocument.<anonymous> (post-edit.js?ver=7a02bee21ada1b649f35fc0b142d26fa:11:3042)
   
       I already disable another plugins and themes but still facing same issue.
   
       Wordpress Version : 6.2
   
       Yoast SEO Version : 20.5
   
       Yoast SEO Premium : 20.5
   
       Please let me know if you need anything from my side.
       ```
   

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

 *  Plugin Support [Jose Varghese](https://wordpress.org/support/users/josevarghese/)
 * (@josevarghese)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/yoast-seo-javascript-error/#post-16668469)
 * Hi [@yogeshbarot15](https://wordpress.org/support/users/yogeshbarot15/)
 * Thanks for using Yoast SEO plugin. We understand that you are noticing a JavaScript
   error like **_Uncaught TypeError: Cannot read properties of undefined (reading‘
   SlotFillProvider’)_** when trying to edit the page.
 * Often, we see problems occur in combination with another plugin or theme. The
   fastest way to rule out any conflict is to **deactivate all non-Yoast plugins
   and switch to a standard theme** like [Twenty Twenty-Two](https://wordpress.org/themes/twentytwentytwo/).
 * Please test this on your development or staging site if you have one. If not,
   we recommend using the [Health Check & Troubleshooting](https://wordpress.org/plugins/health-check/)
   plugin. This plugin has a troubleshooting mode, which **does not affect normal
   visitors to your site**.
 * If you’re unfamiliar with checking for conflicts, we’d like to point you to a
   step-by-step guide that will walk you through the process: [How to check for plugin conflicts](https://yoast.com/help/how-to-check-for-plugin-conflicts/).
 *  Plugin Support [Jose Varghese](https://wordpress.org/support/users/josevarghese/)
 * (@josevarghese)
 * [3 years, 1 month ago](https://wordpress.org/support/topic/yoast-seo-javascript-error/#post-16679074)
 * This thread was marked resolved due to a lack of activity, but you’re always 
   welcome to re-open the topic. Please read [this post](https://wordpress.org/support/topic/read-this-before-your-post/)
   before [opening a new request](https://wordpress.org/support/plugin/wordpress-seo#new-post).
 *  [snowraph](https://wordpress.org/support/users/snowraph/)
 * (@snowraph)
 * [2 years, 11 months ago](https://wordpress.org/support/topic/yoast-seo-javascript-error/#post-16875719)
 * Hello,
 * We have this exact same problem on several admin pages. Console output on /wp-
   admin/admin.php?page=wpseo_page_settings:
 * `w-settings.js?ver=1d99649884583482e41aa4c53c695620-b-modified-1688131811:260
   Uncaught TypeError: Cannot read properties of undefined (reading 'SlotFillProvider')
   
   at HTMLDocument. (new-settings.js?ver=1d99649884583482e41aa4c53c695620-b-modified-
   1688131811:260:7015)(anonymous) @ new-settings.js?ver=1d99649884583482e41aa4c53c695620-
   b-modified-1688131811:260
 * Firefox generates a quite similar error:
 * `Uncaught TypeError: n is undefined
   new-settings.js:260:6989
 * We tried [Health Check & Troubleshooting](https://wordpress.org/plugins/health-check/)
   plugin, with the Twenty Twenty-Two theme, just activating **Yoast SEO** and **
   Yoast SEO Premium** plugins (we do have a license). Both Version 20.10.
 * Thank you very much for you help !

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

The topic ‘Yoast SEO | Javascript Error’ is closed to new replies.

 * ![](https://ps.w.org/wordpress-seo/assets/icon-256x256.gif?rev=3419908)
 * [Yoast SEO - Advanced SEO with real-time guidance and built-in AI](https://wordpress.org/plugins/wordpress-seo/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-seo/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-seo/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-seo/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-seo/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-seo/reviews/)

 * 3 replies
 * 3 participants
 * Last reply from: [snowraph](https://wordpress.org/support/users/snowraph/)
 * Last activity: [2 years, 11 months ago](https://wordpress.org/support/topic/yoast-seo-javascript-error/#post-16875719)
 * Status: resolved