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TypeError: MediaWiki\Permissions\GroupPermissionsLookup::groupHasPermission(): Argument #2 ($permission) must be of type string, null given, called in /srv/mediawiki/php-1.47.0-wmf.3/includes/Output/OutputPage.php on line 3414
Closed, ResolvedPublicPRODUCTION ERROR

Description

Error
  • service.version: 1.47.0-wmf.3
  • timestamp: 2026-05-20T06:06:49.744Z
  • labels.phpversion: 8.3.30
  • trace.id: cd0ca309-e0bc-44d0-aa96-91ebcceecb8f
  • Find trace.id in Logstash
labels.normalized_message
[{reqId}] {exception_url}   TypeError: MediaWiki\Permissions\GroupPermissionsLookup::groupHasPermission(): Argument #2 ($permission) must be of type string, null given, called in /srv/mediawiki/php-1.47.0-wmf.3/includes/Output/OutputPage.php on line 3414
FrameLocationCall
from/srv/mediawiki/php-1.47.0-wmf.3/includes/Permissions/GroupPermissionsLookup.php(65)
#0/srv/mediawiki/php-1.47.0-wmf.3/includes/Output/OutputPage.php(3414)MediaWiki\Permissions\GroupPermissionsLookup->groupHasPermission(string, null)
#1/srv/mediawiki/php-1.47.0-wmf.3/includes/Exception/PermissionsError.php(80)MediaWiki\Output\OutputPage->showPermissionStatus(MediaWiki\Permissions\PermissionStatus, null)
#2/srv/mediawiki/php-1.47.0-wmf.3/includes/Actions/ActionEntryPoint.php(148)MediaWiki\Exception\PermissionsError->report(int)
#3/srv/mediawiki/php-1.47.0-wmf.3/includes/MediaWikiEntryPoint.php(180)MediaWiki\Actions\ActionEntryPoint->execute()
#4/srv/mediawiki/php-1.47.0-wmf.3/index.php(44)MediaWiki\MediaWikiEntryPoint->run()
#5/srv/mediawiki/w/index.php(3)require(string)
#6{main}
Impact
Notes

Probably does not have any impact. That is for https://test.wikipedia.org/wiki/Special:Redirect/user/6159 which yields:

Permission error
You are not allowed to execute the action you have requested.

Details

Request URL
https://test.wikipedia.org/wiki/Special:Redirect/user/6159
Related Changes in Gerrit:

Event Timeline

Change #1290987 had a related patch set uploaded (by Bartosz Dziewoński; author: Bartosz Dziewoński):

[mediawiki/core@master] OutputPage: Fix error in showPermissionStatus()

https://gerrit.wikimedia.org/r/1290987

Change #1290987 merged by jenkins-bot:

[mediawiki/core@master] OutputPage: Fix error in showPermissionStatus()

https://gerrit.wikimedia.org/r/1290987