The editor has encountered an unexpected error. Attempt Recovery Copy Post Text

Visiting: https://reactjs.org/ provides the full error as: ‘Element type is invalid: expected a string (for built-in components) or a class/function (for composite components) but got: undefined.’

Can anyone help interpret this error please?

Thank you

Another odd quirk: when clicking on ‘Quick Edit’ in the dashboard list of pages, instead of going to Quick Edit the page disappears until the listing is refreshed.

Something is very wrong!

@mikealan – I am experiencing the same issue. I also updated to the latest version of WordPress (like maybe 1-2 days ago?). Starting today I can’t edit with the block editor, only classic.

I have tried:

-Deactivating and reactivating each plugin one by one.

-Migrating from Atomic Blocks to Genesis Blocks.

-Installing the Health Check & Troubleshooting plugin. My site health is good, per this plugin. With this plugin, you switch to a default theme (e.g., WP’s Twenty Twenty theme) and turn plugins on and off in troubleshooting mode. (Site visitors still see your desired theme and lose no functionality.) The block editor worked fine with all the plugins AND default theme – BUT – when I switched to MY desired theme in troubleshooting mode, the block editor broke again.

I’ve never had an issue like this with my desired (i.e., non-default) theme. My gut tells me it has something to do with the WP update, too.

Here’s my error message:

Error: Minified React error #130; visit https://reactjs.org/docs/error-decoder.html?invariant=130&args%5B%5D=undefined&args%5B%5D= for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
at Rc (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:157:299)
at q (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:69:432)
at v (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:72:200)
at https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:76:214
at T (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:87:146)
at ph (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:218:209)
at lh (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:126:409)
at O (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:121:71)
at ze (https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:118:14)
at https://siemachtsewingblog.com/wp-includes/js/dist/vendor/react-dom.min.js:53:49

Hi, @mikealan! It looks like you have some PHP errors you can look at your error log at a server.
In addition, you can enable the WordPress debug log:

Debugging in WordPress

Possibly, you need to disable plugins to find out which one is causing the problem if from logs it will not be obvious and then contact this plugin (or theme) author for help.

If you are checking compatibility with a theme, you need to switch to one of the default themes, because we know that they are compatible with the new WordPress version.

Keep in mind that more than one plugin can have issues at the same time.

In addition, there are mentioned common jQuery issues and what to do about them:
https://github.com/wpmarketingteam/WP5.5/blob/main/Q%26A%20for%20non-technical%20users.md#section-8-jquery

@erinvanhandel You should have started your own topic. The original poster will receive all replies to this one. Try to find out the problem.

This topic has a lot of replies, why no one came to answer before… mostly volunteers on the forum looking through topics without replies.