Title: Error: Minified React error #321
Last modified: January 10, 2020

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# Error: Minified React error #321

 *  Resolved [collapsing_os](https://wordpress.org/support/users/collapsing_os/)
 * (@collapsing_os)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/)
 * Unfortunately, I receive the error “An unexpected error occured in the editor”
   when clicking on the Rank Math symbol in Gutenberg. When I run into this error,
   I can copy the error message. It says:
 *     ```
       Error: Minified React error #321; visit https://reactjs.org/docs/error-decoder.html?invariant=321 for the full message or use the non-minified dev environment for full errors and additional helpful warnings. 
           at Object.S (domain/plugins/gutenberg/vendor/react-dom.min.b694e242.js?ver=16.9.0:78:253)
           at useMemo (domain/plugins/gutenberg/vendor/react.min.0212dc62.js?ver=16.9.0:32:306)
           at j (domain/plugins/gutenberg/build/compose/index.js?ver=03b5f6921d69ba216629f9b6c1d83fd0:1:11430)
           at WithInstanceId(Component) (domain/plugins/gutenberg/build/compose/index.js?ver=03b5f6921d69ba216629f9b6c1d83fd0:1:11559)
           at F (domain/plugins/gutenberg/build/element/index.js?ver=cf6240cb7c9776eae02972086206d83f:1:8598)
           at domain/plugins/seo-by-rank-math/assets/admin/js/gutenberg.js?ver=1.0.36.3:1:17321
           at Array.map (<anonymous>)
           at e.value (domain/plugins/seo-by-rank-math/assets/admin/js/gutenberg.js?ver=1.0.36.3:1:16919)
           at e.value (domain/plugins/seo-by-rank-math/assets/admin/js/gutenberg.js?ver=1.0.36.3:1:16289)
           at domain/plugins/seo-by-rank-math/assets/admin/js/gutenberg.js?ver=1.0.36.3:1:16207
       ```
   
 * So, I deactivated Rank Math. Now, Gutenberg runs without issues. I assume, there
   is a compatibility issue between Gutenberg and Rank Math. What can I do with 
   this?
 * Gutenberg: Version 7.2.0
    Rank Math SEO: Version 1.0.36.3
 * Thank you
    Henning
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-minified-react-error-321%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Thread Starter [collapsing_os](https://wordpress.org/support/users/collapsing_os/)
 * (@collapsing_os)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12311596)
 * Ah, it’s caused by the Gutenberg plugin. The build-in aditor does not show the
   error.
 *  Plugin Author [Rank Math SEO](https://wordpress.org/support/users/rankmath/)
 * (@rankmath)
 * [6 years, 5 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12313323)
 * Hello [@collapsing_os](https://wordpress.org/support/users/collapsing_os/)
 * Thank you for contacting the support and sorry for any inconvenience that might
   have been caused due to that.
 * We have identified the issue and it should be fixed in one of the upcoming updates.
 * For now, we recommend disabling the Gutenberg plugin and using the default Block
   Editor of WordPress.
 * In the meantime, if you need any other assistance, please feel free to let us
   know. We are here to help.
 *  Thread Starter [collapsing_os](https://wordpress.org/support/users/collapsing_os/)
 * (@collapsing_os)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12315833)
 * Hi Rank Math Support,
 * I am fine with this. The last Update didn’t solve the issue. But that’s clear
   since my question was short before the release. I will wait for the update and
   use the build-in editor.
 * Cheers
    Henning
 *  Plugin Author [Rank Math SEO](https://wordpress.org/support/users/rankmath/)
 * (@rankmath)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12321627)
 * Hello [@collapsing_os](https://wordpress.org/support/users/collapsing_os/)
 * We have mentioned the issue and the reason here
    [https://rankmath.com/changelog/#known-issues](https://rankmath.com/changelog/#known-issues)
 * We would request you to please use the default Block Editor from the core instead
   of using the Gutenberg plugin at this time.
 * Hope that helps. If there’s anything, please let us know. We are here to assist.
 *  [alexynior](https://wordpress.org/support/users/alexynior/)
 * (@alexynior)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12419369)
 * I have the same problem. You still haven’t been able to solve it? Thank you
 *  Plugin Author [Rank Math SEO](https://wordpress.org/support/users/rankmath/)
 * (@rankmath)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12423391)
 * Hello [@alexynior](https://wordpress.org/support/users/alexynior/)
 * Sorry to disappoint but we have not worked on it yet since the Gutenberg plugin
   offers only the experimental features.
 * One can use the default Block Editor that comes shipped with WordPress and disabling
   the Gutenberg plugin won’t remove any data from your website.
 * In the near future, we will see how we can improve the workflow and add support
   for the Gutenberg plugin as well.
 * Hope that helps. Please let us know if there’s anything else we can help you 
   with.
 * P.S. Please always open a separate support topic as recommended by WordPress’s
   guidelines.
 *  [alexynior](https://wordpress.org/support/users/alexynior/)
 * (@alexynior)
 * [6 years, 3 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12423824)
 * uhm Okey thanks

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Error: Minified React error #321’ 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/)
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## Tags

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

 * 7 replies
 * 3 participants
 * Last reply from: [alexynior](https://wordpress.org/support/users/alexynior/)
 * Last activity: [6 years, 3 months ago](https://wordpress.org/support/topic/error-minified-react-error-321/#post-12423824)
 * Status: resolved