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Maniphest T8428

Fatal exception of type "Error" when click the "save" or "show preview" button.
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Description

Reproduction:

  1. Open the following URL: https://minecraftjapan.miraheze.org/w/index.php?title=MediaWiki:ItemSprite.json&action=edit
  2. Push the "Save" or "Show Preview" button. (Note: This is a MediaWiki namespace, so you may need administrator permission.)
  3. Then you will see:

[56f93b0c3e6be9befb1b410b] 2021-12-12 10:24:07: Fatal exception of type "Error"

.

Event Timeline

Pneuma created this task.Dec 12 2021, 10:32
Herald added subscribers: Agent_Isai, Universal_Omega, RhinosF1, Reception123. · View Herald TranscriptDec 12 2021, 10:32
Universal_Omega added a comment.Dec 12 2021, 21:48

The issue is with the Lingo extension. https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Lingo/+/745880 should fix it if merged upstream.

Call to a member function getText() on null
from /srv/mediawiki/w/extensions/Lingo/src/LingoParser.php(191)
#0 /srv/mediawiki/w/extensions/Lingo/src/LingoParser.php(80): Lingo\LingoParser->realParse(Parser)
#1 /srv/mediawiki/w/extensions/Lingo/src/Lingo.php(61): Lingo\LingoParser->parse(Parser)
#2 /srv/mediawiki/w/includes/HookContainer/HookContainer.php(338): Lingo\Lingo::Lingo\{closure}(JsonContent, Title, ParserOutput)
#3 /srv/mediawiki/w/includes/HookContainer/HookContainer.php(137): MediaWiki\HookContainer\HookContainer->callLegacyHook(string, array, array, array)
#4 /srv/mediawiki/w/includes/HookContainer/HookRunner.php(1212): MediaWiki\HookContainer\HookContainer->run(string, array)
#5 /srv/mediawiki/w/includes/content/AbstractContent.php(552): MediaWiki\HookContainer\HookRunner->onContentAlterParserOutput(JsonContent, Title, ParserOutput)
#6 /srv/mediawiki/w/includes/EditPage.php(4212): AbstractContent->getParserOutput(Title, NULL, ParserOptions)
#7 /srv/mediawiki/w/includes/EditPage.php(4115): EditPage->doPreviewParse(JsonContent)
#8 /srv/mediawiki/w/includes/EditPage.php(2893): EditPage->getPreviewText()
#9 /srv/mediawiki/w/includes/EditPage.php(722): EditPage->showEditForm()
#10 /srv/mediawiki/w/includes/actions/EditAction.php(71): EditPage->edit()
#11 /srv/mediawiki/w/includes/actions/SubmitAction.php(38): EditAction->show()
#12 /srv/mediawiki/w/includes/MediaWiki.php(538): SubmitAction->show()
#13 /srv/mediawiki/w/includes/MediaWiki.php(320): MediaWiki->performAction(Article, Title)
#14 /srv/mediawiki/w/includes/MediaWiki.php(925): MediaWiki->performRequest()
#15 /srv/mediawiki/w/includes/MediaWiki.php(559): MediaWiki->main()
#16 /srv/mediawiki/w/index.php(53): MediaWiki->run()
#17 /srv/mediawiki/w/index.php(46): wfIndexMain()
#18 {main}
Universal_Omega triaged this task as Normal priority.Dec 12 2021, 21:48
Universal_Omega added projects: Extensions, MediaWiki (SRE).
Herald added a project: Universal Omega. · View Herald TranscriptDec 12 2021, 21:48
Universal_Omega moved this task from Backlog to Deployed Extension Bugs on the Extensions board.Dec 12 2021, 21:48
Universal_Omega moved this task from Backlog to Short Term on the MediaWiki (SRE) board.
Universal_Omega moved this task from Unsorted to Short Term on the Universal Omega board.
Universal_Omega closed this task as Invalid.Dec 12 2021, 23:37
Universal_Omega claimed this task.
Universal_Omega added a project: Upstream.

Closing as invalid since nothing more can be done on our side now, and it is up to upstream to merge my patch. To resolve the issue for you, you will need to disable Lingo it would seem.

Pneuma added a comment.Dec 13 2021, 00:51

We've solved it. Thank you very much for investigating the cause of this problem.