The editor has encountered an unexpected error.

Same issue here. I’m running Twenty Twenty One theme and everything is completely updated. It was working until the most recent Gutenberg update, not the one today but a few days ago.

@danquigley @crslawltd Can you try going back to a previous release? https://www.ads-software.com/plugins/wp-rollback/.

Does it start working again if you roll back to 2.10.4, for example?

Rolling back your plugin is does not do anything. However, if I roll the Gutenberg Plugin back to 11.4.1, then your plugin stops crashing the block editor.

Seems to be a compatibility issue with the current Gutenberg build.

P.S. thanks for the tip on the roll back plugin. I wondered if there was something like that.

@danquigley Ah, that’s a useful hint … you’re using the extra Gutenberg plugin and not just core WordPress?

@stevejburge Correct. To be honest, I thought it was necessary to use the block editor.

@danquigley No, far from it.

You need that plugin only if you want to live on the bleeding edge of new features.

Can you try disabling it for now?

@stevejburge I disabled it. I see you can’t delete it, funny.

No issues when it’s disabled or when Gutenberg 11.4.1 is enabled.

Hi @stevejburge – I do not and have not had the Gutenberg plugin installed – I have been having this issue for several versions of the PublishPress Blocks plugin.

• This reply was modified 3 years, 5 months ago by crslawltd.

To clarify on my original post – I can load the Edit page, and I can click into ordinary blocks, make edits, and save them. It appears the error only occurs when I try to add new blocks.

Hi @crslawltd,

1) May you share step by step details to reproduce the issue?
2) In addition which WordPress and PublishPress Blocks version are you using?

I am currently on WordPress version 5.8.1 and PublishPress Blocks version 2.10.5.

Reproducing the issue:

1. Logged in and viewing a page on the front end.
2. Click Edit Page on the Admin bar
3. I can click into blocks and edit existing text
4. Click on a plus icon to add a new block
5. The page editor disappears and I am shown the error message “The editor has encountered an unexpected error.” Buttons available are Attempt Recovery, Copy Post Test, and Copy Error.

Thanks for sharing the instructions, @crslawltd ! In my end I’m not able to reach the error.

Check if there is a reference error in browser console that points to plugin file.
Or deactivate other plugins, in particular the ones related to Gutenberg editor and blocks, and see if the issue is gone.

This may tell us if the issue involves other plugin.

@htmgarcia thanks for the response. I have tried this and the only issue I can see in the console causing this comes from PublishPress Blocks, with the below errors in the console:

DevTools failed to load source map: Could not load content for https://chrisruddsolicitors.co.uk/wp-content/plugins/advanced-gutenberg/assets/blocks/post-sidebar.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
DevTools failed to load source map: Could not load content for https://chrisruddsolicitors.co.uk/wp-content/plugins/advanced-gutenberg/assets/blocks/blocks.js.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE

@crslawltd those are warnings about map files for developers. That doesn’t relate to breaking the editor.

What about switching the theme for a second as a test. Is the problem gone?

@htmgarcia I just tried switching back to Twenty Twenty-One and still had the exact same error.