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Maniphest T262430

Uncaught TypeError: Cannot read property 'emit' of null
Open, MediumPublicPRODUCTION ERROR
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Description

Error

MediaWiki version: n/a

message
Uncaught TypeError: Cannot read property 'emit' of null

Impact

Notes

Details

Request ID
undefined
Request URL
https://he.wikipedia.org/w/index.php?title=%D7%9E%D7%99%D7%95%D7%97%D7%93:%D7%AA%D7%A8%D7%92%D7%95%D7%9D_%D7%AA%D7%95%D7%9B%D7%9F&page=The+Story+of+the+Trapp+Family+Singers&from=en&to=he&targettitle=&campaign=interlanguagelink
Stack Trace
exception.trace
at MwCxDmPageTitleModel.ve.dm.CXLintableNode.notify  https://he.wikipedia.org/w/load.php?lang=he&modules=ext.cx.widgets.spinner%7Cext.cx.wikibase.link%7Cjquery%2Coojs-ui-core%2Coojs-ui-widgets%7Cjquery.ui%7Cmw.cx.MachineTranslation%2CMwApiRequestManager%2Cdm%2Cinit%2Cui%2Cutil%7Cmw.cx.dm.PageTitleModel%2CTranslation%2CTranslationIssue%2CWikiPage%7Cmw.cx.init.Translation%7Cmw.cx.tools.IssueTrackingTool%2CTranslationTool%2CTranslationToolFactory%7Cmw.cx.ui.Categories%2CCategoryMultiselectWidget%2CHeader%2CInfobar%2CMessageWidget%2CPageTitleWidget%2CPersonalMenuWidget%2CTranslationToolWidget%2CTranslationView%7Cve.ce.CXLintableNode%7Cve.dm.CXLintableNode%7Cve.init.mw.CXTarget%7Cve.ui.CXDesktopContext%2CCXSurface&skin=vector&version=1305h:857:934
at MwCxDmPageTitleModel.ve.dm.CXLintableNode.resolveTranslationIssues  https://he.wikipedia.org/w/load.php?lang=he&modules=ext.cx.widgets.spinner%7Cext.cx.wikibase.link%7Cjquery%2Coojs-ui-core%2Coojs-ui-widgets%7Cjquery.ui%7Cmw.cx.MachineTranslation%2CMwApiRequestManager%2Cdm%2Cinit%2Cui%2Cutil%7Cmw.cx.dm.PageTitleModel%2CTranslation%2CTranslationIssue%2CWikiPage%7Cmw.cx.init.Translation%7Cmw.cx.tools.IssueTrackingTool%2CTranslationTool%2CTranslationToolFactory%7Cmw.cx.ui.Categories%2CCategoryMultiselectWidget%2CHeader%2CInfobar%2CMessageWidget%2CPageTitleWidget%2CPersonalMenuWidget%2CTranslationToolWidget%2CTranslationView%7Cve.ce.CXLintableNode%7Cve.dm.CXLintableNode%7Cve.init.mw.CXTarget%7Cve.ui.CXDesktopContext%2CCXSurface&skin=vector&version=1305h:857:779
at mw.cx.ui.PageTitleWidget.validateTitle  https://he.wikipedia.org/w/load.php?lang=he&modules=ext.cx.widgets.spinner%7Cext.cx.wikibase.link%7Cjquery%2Coojs-ui-core%2Coojs-ui-widgets%7Cjquery.ui%7Cmw.cx.MachineTranslation%2CMwApiRequestManager%2Cdm%2Cinit%2Cui%2Cutil%7Cmw.cx.dm.PageTitleModel%2CTranslation%2CTranslationIssue%2CWikiPage%7Cmw.cx.init.Translation%7Cmw.cx.tools.IssueTrackingTool%2CTranslationTool%2CTranslationToolFactory%7Cmw.cx.ui.Categories%2CCategoryMultiselectWidget%2CHeader%2CInfobar%2CMessageWidget%2CPageTitleWidget%2CPersonalMenuWidget%2CTranslationToolWidget%2CTranslationView%7Cve.ce.CXLintableNode%7Cve.dm.CXLintableNode%7Cve.init.mw.CXTarget%7Cve.ui.CXDesktopContext%2CCXSurface&skin=vector&version=1305h:831:149
at later  https://he.wikipedia.org/w/load.php?lang=he&modules=ext.cx.widgets.spinner%7Cext.cx.wikibase.link%7Cjquery%2Coojs-ui-core%2Coojs-ui-widgets%7Cjquery.ui%7Cmw.cx.MachineTranslation%2CMwApiRequestManager%2Cdm%2Cinit%2Cui%2Cutil%7Cmw.cx.dm.PageTitleModel%2CTranslation%2CTranslationIssue%2CWikiPage%7Cmw.cx.init.Translation%7Cmw.cx.tools.IssueTrackingTool%2CTranslationTool%2CTranslationToolFactory%7Cmw.cx.ui.Categories%2CCategoryMultiselectWidget%2CHeader%2CInfobar%2CMessageWidget%2CPageTitleWidget%2CPersonalMenuWidget%2CTranslationToolWidget%2CTranslationView%7Cve.ce.CXLintableNode%7Cve.dm.CXLintableNode%7Cve.init.mw.CXTarget%7Cve.ui.CXDesktopContext%2CCXSurface&skin=vector&version=1305h:159:240

Related Objects

Event Timeline

Jdlrobson created this task.Sep 9 2020, 3:25 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptSep 9 2020, 3:25 PM
Jdlrobson changed Request URL from n/a to https://he.wikipedia.org/w/index.php?title=%D7%9E%D7%99%D7%95%D7%97%D7%93:%D7%AA%D7%A8%D7%92%D7%95%D7%9D_%D7%AA%D7%95%D7%9B%D7%9F&page=The+Story+of+the+Trapp+Family+Singers&from=en&to=he&targettitle=&campaign=interlanguagelink.Sep 9 2020, 3:25 PM
• Jpita subscribed.Sep 9 2020, 4:30 PM

I copied the wikitext content of the source article The+Story+of+the+Trapp+Family+Singers and fully translated it using CX with google translate, couldn't find any issues.

https://he.wikipedia.org/wiki/%D7%9E%D7%A9%D7%AA%D7%9E%D7%A9:Testpitanormal/Trapp

Any more info you can provide @Jdlrobson so I can try to replicate your issue?

Jdlrobson added a comment.Sep 9 2020, 4:41 PM

I don't know enough about this code to know how the CXLintableNode.notify works but a casual glance at the code here:
https://gerrit.wikimedia.org/g/mediawiki/extensions/ContentTranslation/+/d231f5b53c869cad5d638502aba4faf8550623ae/modules/ve-cx/dm/mixins/ve.dm.CXLintableNode.js#137 suggests that the method getTranslation() is returning null yet the function signature at https://gerrit.wikimedia.org/g/mediawiki/extensions/ContentTranslation/+/d231f5b53c869cad5d638502aba4faf8550623ae/modules/ve-cx/dm/mixins/ve.dm.CXLintableNode.js#24 says that it always returns a mw.cx.dm.Translation which judging by the errors in logstash is not true. I suspect this is thus not replicable on all page views but depends on the current state of the translations. At very least you should patch the null case for now.

Do you have access to logstash? The errors there might shed some more clues!
https://logstash.wikimedia.org/app/kibana#/doc/logstash-*/logstash-2020.09.09/clienterror/?id=AXRzDZQENoG2jwpwJTLU

Jdlrobson moved this task from Untriaged to Older on the Wikimedia-production-error board.Sep 16 2020, 6:57 PM
Umherirrender added a project: JavaScript.Sep 16 2020, 7:34 PM
Nikerabbit triaged this task as Low priority.Sep 28 2020, 2:27 PM
Nikerabbit subscribed.

Triaging as low given the low number of occurrences compared to other issues.

Nikerabbit merged a task: T265383: TypeError: can't access property "emit", this.getTranslation() is null.Nov 22 2021, 11:44 AM
Nikerabbit moved this task from Needs Triage to Bugs on the ContentTranslation board.
awight subscribed.Sep 5 2023, 8:48 PM
awight added a comment.Sep 5 2023, 8:56 PM

I'm getting this error and it prevents me from translating a specific page. There's no obvious workaround.

Steps to reproduce:

Uncaught TypeError: this.getTranslation() is null
    notify https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation line 10 > eval:4
    resolveTranslationIssues https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation line 10 > eval:4
    jQuery 2
load.php:4:825
    notify https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation line 10 > eval:4
    resolveTranslationIssues https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation line 10 > eval:4
    jQuery 2

Strangely, there are different errors when reloading the page again:

Uncaught TypeError: title.replace is not a function
    parse https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation line 10 > eval:2
    newFromText https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation line 10 > eval:4
    jQuery 14
    runScript https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    cssHandle https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    flushCssBuffer https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    addEmbeddedCSS https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    execute https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    doPropagation https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:5
    requestIdleCallback handler*setAndPropagate https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:6
    markModuleReady https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    runScript https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    cssHandle https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    flushCssBuffer https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    addEmbeddedCSS https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    execute https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    doPropagation https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:5
    requestIdleCallback handler*setAndPropagate https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:6
    markModuleReady https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    runScript https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    cssHandle https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    flushCssBuffer https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    addEmbeddedCSS https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    execute https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    doPropagation https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:5
    requestIdleCallback handler*setAndPropagate https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:6
    markModuleReady https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    runScript https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    cssHandle https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    flushCssBuffer https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    addEmbeddedCSS https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:4
    execute https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:12
    doPropagation https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:5
    requestIdleCallback handler*setAndPropagate https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:6
    markModuleReady https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
    runScript https://en.wikipedia.org/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=contenttranslation:11
load.php:2:828
Jdlrobson added a project: Language-Team.Sep 7 2023, 5:21 PM
Jdlrobson added subscribers: santhosh, Pginer-WMF.
Kizule raised the priority of this task from Low to Medium.Sep 8 2023, 10:30 PM
Kizule subscribed.

I don't think that this should be a "Low" priority. I'm merging my task now.

Kizule merged a task: T345964: TypeError: Cannot read properties of null (reading 'parentNode').Sep 8 2023, 10:30 PM
Nikerabbit removed a project: Language-Team.Sep 9 2023, 6:01 AM

@Kizule your stackstrace is different from this one. What makes you think it's a duplicate?

Kizule added a comment.Sep 9 2023, 6:21 AM
In T262430#9154049, @Nikerabbit wrote:

@Kizule your stackstrace is different from this one. What makes you think it's a duplicate?

Similarity of the error message, for which I've started to think that it doesn't actually do anything about my issue of being unable to use the content translation on Serbian Wikipedia.

Nikerabbit moved this task from Bugs to Translation editor on the ContentTranslation board.Jun 25 2025, 1:56 PM
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