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Wikimedia Assert ParameterTypeException when rendering permanent link pages
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Description

During at least the last 2 weeks, the following URL cannot be rendered:

https://de.wikipedia.org/w/index.php?title=Altjapanische_Sprache&oldid=184088954

Actual results:
[XNpcRApAADoAAEf0nsUAAADO] 2019-05-14 06:12:20: Fataler Ausnahmefehler des Typs „Wikimedia\Assert\ParameterTypeException“

This bug seems to be browser-independent.

Event Timeline

Lesbar created this task.May 14 2019, 6:23 AM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMay 14 2019, 6:23 AM
Krenair added a subscriber: Krenair.

Probably T222628: Some history views and diffs unavailable on Wikipedias (Fatal ParameterAssertionException: Bad value for parameter $dbkey) (or the issue mentioned in the comments there?) but someone should check the stack trace.

Hi @Lesbar, thanks for taking the time to report this!
This is Wikimedia\Assert\ParameterTypeException from line 97 of /srv/mediawiki/php-1.34.0-wmf.4/includes/title/TitleValue.php: Bad value for parameter $fragment: must be a string so it is T222857. I am merging this task into T222857.

mmodell changed the subtype of this task from "Task" to "Production Error".Aug 28 2019, 11:07 PM