ZMultiLingualStringSet: TypeError: Illegal offset type
Closed, ResolvedPublicPRODUCTION ERROR
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	• brennen
	Apr 9 2025, 8:54 PM

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Error

service.version: 1.44.0-wmf.24
trace.id: d5c9a08b-6e7c-4989-a7e2-43149d5e8236
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[{reqId}] {exception_url}   TypeError: Illegal offset type

Frame	Location	Call
from	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjects/ZMultiLingualStringSet.php(163)
#0	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjects/ZMultiLingualStringSet.php(32)	MediaWiki\Extension\WikiLambda\ZObjects\ZMultiLingualStringSet->setMonoLingualStringSet(MediaWiki\Extension\WikiLambda\ZObjects\ZMonoLingualStringSet)
#1	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjectFactory.php(310)	MediaWiki\Extension\WikiLambda\ZObjects\ZMultiLingualStringSet->__construct(MediaWiki\Extension\WikiLambda\ZObjects\ZTypedList)
#2	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjectFactory.php(417)	MediaWiki\Extension\WikiLambda\ZObjectFactory::create(stdClass)
#3	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjectFactory.php(352)	MediaWiki\Extension\WikiLambda\ZObjectFactory::createKeyValues(array, string)
#4	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjectFactory.php(378)	MediaWiki\Extension\WikiLambda\ZObjectFactory::create(stdClass)
#5	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ZObjectFactory.php(308)	MediaWiki\Extension\WikiLambda\ZObjectFactory::createKeyValues(array, string)
#6	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ActionAPI/WikiLambdaApiBase.php(198)	MediaWiki\Extension\WikiLambda\ZObjectFactory::create(stdClass)
#7	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ActionAPI/ApiPerformTest.php(278)	MediaWiki\Extension\WikiLambda\ActionAPI\WikiLambdaApiBase->executeFunctionCall(MediaWiki\Extension\WikiLambda\ZObjects\ZFunctionCall, bool)
#8	/srv/mediawiki/php-1.44.0-wmf.24/extensions/WikiLambda/includes/ActionAPI/WikiLambdaApiBase.php(82)	MediaWiki\Extension\WikiLambda\ActionAPI\ApiPerformTest->run()
#9	/srv/mediawiki/php-1.44.0-wmf.24/includes/api/ApiMain.php(2005)	MediaWiki\Extension\WikiLambda\ActionAPI\WikiLambdaApiBase->execute()
#10	/srv/mediawiki/php-1.44.0-wmf.24/includes/api/ApiMain.php(947)	MediaWiki\Api\ApiMain->executeAction()
#11	/srv/mediawiki/php-1.44.0-wmf.24/includes/api/ApiMain.php(918)	MediaWiki\Api\ApiMain->executeActionWithErrorHandling()
#12	/srv/mediawiki/php-1.44.0-wmf.24/includes/api/ApiEntryPoint.php(152)	MediaWiki\Api\ApiMain->execute()
#13	/srv/mediawiki/php-1.44.0-wmf.24/includes/MediaWikiEntryPoint.php(202)	MediaWiki\Api\ApiEntryPoint->execute()
#14	/srv/mediawiki/php-1.44.0-wmf.24/api.php(44)	MediaWiki\MediaWikiEntryPoint->run()
#15	/srv/mediawiki/w/api.php(3)	require(string)
#16	{main}

Notes

Seeing a handful of these - 100 in total - since last week's 1.44.0-wmf.23 (T386218).

Details

Request URL: https://www.wikifunctions.org/w/api.php?action=*&format=*&uselang=*&wikilambda_perform_test_zfunction=*&wikilambda_perform_test_zimplementations=*&wikilambda_perform_test_ztesters=*

Related Changes in Gerrit:

	Subject	Author	Repo	Branch	Lines +/-
	ZMonoLingualStringSet::setMonoLingualStringSet: Don't explode	Jforrester	mediawiki/extensions/WikiLambda	master	+30 -0

Customize query in gerrit

Related Objects

Mentioned In: T391329: Z23746 Unable to run tests. Please reload.
Mentioned Here: T391329: Z23746 Unable to run tests. Please reload.
T386218: 1.44.0-wmf.23 deployment blockers

Event Timeline

• brennen created this task.Apr 9 2025, 8:54 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptApr 9 2025, 8:54 PM

• brennen moved this task from Backlog to Logs/Train on the User-brennen board.Apr 9 2025, 8:55 PM

Maintenance_bot added a project: Abstract Wikipedia team.Apr 9 2025, 9:30 PM

Reedy moved this task from Untriaged to Apr-Jun 2025 on the Wikimedia-production-error board.Apr 14 2025, 5:40 PM

Change #1136476 had a related patch set uploaded (by Jforrester; author: Jforrester):

[mediawiki/extensions/WikiLambda@master] ZMonoLingualStringSet::setMonoLingualStringSet: Don't explode

https://gerrit.wikimedia.org/r/1136476

gerritbot added a project: Patch-For-Review.Apr 15 2025, 12:43 AM

Change #1136476 merged by jenkins-bot:

[mediawiki/extensions/WikiLambda@master] ZMonoLingualStringSet::setMonoLingualStringSet: Don't explode

https://gerrit.wikimedia.org/r/1136476

ReleaseTaggerBot added a project: MW-1.44-notes (1.44.0-wmf.27; 2025-04-29).Apr 15 2025, 7:00 PM

Maintenance_bot removed a project: Patch-For-Review.Apr 15 2025, 7:30 PM

Jdforrester-WMF triaged this task as High priority.Apr 15 2025, 9:04 PM

Jdforrester-WMF added a project: Essential-Work.

Jdforrester-WMF moved this task from To Triage to 25Q4 (Apr–Jun) on the Abstract Wikipedia team board.

Jdforrester-WMF edited projects, added: Abstract Wikipedia team (25Q4 (Apr–Jun)); removed: Abstract Wikipedia team.

Jdforrester-WMF merged a task: T391329: Z23746 Unable to run tests. Please reload..Apr 15 2025, 9:09 PM

Jdforrester-WMF moved this task from Incoming to Ready to deploy on the Abstract Wikipedia team (25Q4 (Apr–Jun)) board.

Jdforrester-WMF added subscribers: 99of9, Jdforrester-WMF, Dv103, GrounderUK.

DSantamaria changed the task status from Open to In Progress.Apr 16 2025, 1:01 PM

DSantamaria assigned this task to Jdforrester-WMF.Apr 17 2025, 6:54 AM

@Jdforrester-WMF hasn't been deployed already?

The tests at T391329 which was merged here still aren't working. I just nudged Z23746 to refresh the cache, but it's still broken.

Jdforrester-WMF moved this task from Ready to deploy to Needs Sign-off on the Abstract Wikipedia team (25Q4 (Apr–Jun)) board.May 7 2025, 10:00 PM

hey @Jdforrester-WMF ,
If this is not resolved, should we move it out of the "Needs Sign-off" column?

In T391528#10789525, @DSantamaria wrote:

@Jdforrester-WMF hasn't been deployed already?

Yes, and it's fixed as filed.

In T391528#10794609, @99of9 wrote:

The tests at T391329 which was merged here still aren't working. I just nudged Z23746 to refresh the cache, but it's still broken.

That's now a new error. Boo. I'll re-open it with the new details.

Jdforrester-WMF mentioned this in T391329: Z23746 Unable to run tests. Please reload..May 13 2025, 10:56 PM

ZMultiLingualStringSet: TypeError: Illegal offset typeClosed, ResolvedPublicPRODUCTION ERRORActions