I can’t add new pages/posts after update to the 3.6.0

Same issue for me, unable to add page or post after I update Gutenberg from 3.5.0 to 3.6.0. Thème Atomic Blocks.

Error message :

TypeError: Cannot read property 'length' of undefined at https://domain.tld/wp-content/plugins/gutenberg/build/editor/index.js?ver=1534502028:12:272919 [...]

I downgrade to 3.5.0.

• This reply was modified 6 years, 3 months ago by elhyaban.

This should be able to help you :

https://drive.google.com/file/d/1KnKETNqIOeNQiUrqFgOL0fanmD5zAQv0/view?usp=sharing

Same error for me since 3.5, 3.6, 3.6.1 and 3.6.2. When I add a new page or post, WP display an error “Updating failed” or “Publishing failed”.

Please attempt the troubleshooting steps outlined in the sticky post (https://www.ads-software.com/support/topic/known-compatibility-issues-common-questions-and-how-to-report-bugs/), it sounds like a plugin or theme conflict more so than anything else.

Since yesterday I can’t open or create new post or pages! Only blank page appears in dashboard.

At first I thought it is issue with page builder but now I deactivated all plugins except Gutenberg and activated Twentyseventeen theme and issue is still there.

What is going on?

Ok Issue is resolved when I reset permalinks to “Plain”, now I can edit pages but still something is not completely ok with permalinks.

Also Gutenberg terribly slows down pages. Can something be done with this?