Make WordPress Core

Opened 6 years ago

Closed 5 years ago

#45631 closed defect (bug) (reported-upstream)

WP 5.01 update didn't like older gutenberg plugin

Reported by: dan-kirshner's profile Dan Kirshner Owned by:
Milestone: Priority: normal
Severity: normal Version:
Component: Editor Keywords:
Focuses: Cc:


Got this error message until I manually removed the gutenberg directory from the plugins directory. I had gutenberg version 3.4.0 previously installed. The error occurred on all site pages, I believe.


Message: Fatal error: Cannot declare class WP_REST_Blocks_Controller, because the name is already in use in /home3/whereisq/public_html/qtest/wp-content/plugins/gutenberg/lib/class-wp-rest-blocks-controller.php on line 123

Change History (3)

#1 @subrataemfluence
6 years ago

Welcome to Trac and thanks for opening the ticket!

Although Gutenberg is now in core, active development and contributions are still in Github.
Just a suggestion: Creating issue at might be more helpful.

#2 @SergeyBiryukov
6 years ago

  • Component changed from General to Editor

#3 @garrett-eclipse
5 years ago

  • Milestone Awaiting Review deleted
  • Resolution set to reported-upstream
  • Status changed from new to closed

Hi @dan-kirshner thanks for the report.

This issue was reported upstream on the Gutenberg repo where active development occurs;

In the above-mentioned ticket, it was recommended to update the plugin first as this affected old versions. *If you can't access the admin you can update via FTP.

You can test by installing the latest version of Gutenberg and if the issue continues feel free to re-open the report on that repo where active development is done for the block editor.

I'm going to close this report as it's been resolved upstream in Gutenberg.

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