at StepBuilder.prototype.canonicalizeStep URL1:734:135
at callback URL1:734:836
at Step.prototype.initialize/options.next URL1:747:782
at mw.libs.guiders</guiders.doStep URL1:1444:89
at next URL1:739:610
at onclick URL1:737:877
at mw.libs.guiders</guiders._makeButtonListener/< URL1:1435:619
at dispatch URL1:69:742
at add/elemData.handle URL1:66:388

URL1: https://commons.wikimedia.org/w/load.php?lang=en&modules=dataValues%2Cjquery%2Coojs%2Coojs-router%2Coojs-ui%2Coojs-ui-core%2Coojs-ui-toolbars%2Coojs-ui-widgets%2Coojs-ui-windows%2Csite%2CvalueFormatters%2CvalueParsers%2Cvue%2Cwikibase%7CdataValues.DataValue%2CTimeValue%2Cvalues%7Cext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2Ckartographer%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.kartographer.link%2Clinkbox%2Cutil%7Cext.uls.common%2Ccompactlinks%2Ci18n%2Cinit%2Cinterface%2Clanguagenames%2Cmediawiki%2Cmessages%2Cpreferences%2Cwebfonts%7Cext.wikimediaEvents.loggedin%2Cwikibase%7Cjquery.animateWithEvent%2Cclient%2Ccookie%2Ci18n%2Cinputautoexpand%2CmakeCollapsible%2CtextSelection%2Cthrottle-debounce%2Ctipsy%2Cui%2Culs%2Cvalueview%7Cjquery.event.special.eachchange%7Cjquery.makeCollapsible.styles%7Cjquery.ui.commonssuggester%2Clanguagesuggester%2Csuggester%7Cjquery.uls.data%2Cgrid%7Cjquery.util.getDirectionality%7Cjquery.valueview.Expert%2CExpertExtender%2CExpertStore%7Cjquery.valueview.experts.CommonsMediaType%2CEmptyValue%2CGeoShape%2CGlobeCoordinateInput%2CMonolingualText%2CQuantityInput%2CStringValue%2CTabularData%2CTimeInput%2CUnDeserializableValue%7Cjquery.wikibase.entityselector%2Cwbtooltip%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2CconfirmCloseWindow%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Crouter%2Cstorage%2Ctemplate%2Cuser%2Cutil%7Cmediawiki.ForeignApi.core%7Cmediawiki.action.edit.editWarning%7Cmediawiki.action.view.metadata%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmediawiki.template.mustache%2Cmustache%2Bdom%7Cmediawiki.ui.button%2Cicon%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cmw.config.values.wbDataTypes%2CwbRefTabsEnabled%2CwbRepo%2CwbSiteDetails%7Coojs-ui-core.icons%2Cstyles%7Coojs-ui-toolbars.icons%7Coojs-ui-widgets.icons%7Coojs-ui-windows.icons%7Coojs-ui.styles.icons-editing-core%2Cicons-interactions%2Cicons-location%2Cicons-movement%2Cindicators%7Cskins.vector.legacy.js%7Cuser.defaults%7Cutil.ContentLanguages%2CExtendable%2CMessageProvider%2CMessageProviders%2CNotifier%2ChighlightSubstring%2Cinherit%7CvalueParsers.ValueParserStore%2Cparsers%7Cwikibase.EntityInitializer%2CSite%2CWikibaseContentLanguages%2CbuildErrorOutput%2Cdatamodel%2CgetLanguageNameByCode%2CgetUserLanguages%2Cserialization%2Csites%2Ctainted-ref%2Ctemplates%7Cwikibase.api.RepoApi%2CValueCaller%7Cwikibase.entityChangers.EntityChangersFactory%7Cwikibase.entityPage.entityLoaded%7Cwikibase.experts.Entity%2CItem%2CProperty%2C__namespace%2Cmodules%7Cwikibase.formatters.ApiValueFormatter%7Cwikibase.mediainfo.base%2CfilePageDisplay%2Csearch%2Cstatements%2Culs%7Cwikibase.quality.constraints.icon%2Cui%7Cwikibase.ui.entityViewInit%7Cwikibase.utilities.ClaimGuidGenerator%7Cwikibase.view.ControllerViewFactory%2CReadModeViewFactory%2C__namespace&skin=vector&version=1qiw3

Related Objects

Mentioned In: T297657: TypeError: Cannot read properties of undefined (reading 'step')
Mentioned Here: T235752: Undeploy the GettingStarted extension

Event Timeline

Jdlrobson created this task.Sep 14 2020, 5:52 PM

Restricted Application added a project: Growth-Team. · View Herald TranscriptSep 14 2020, 5:52 PM

Restricted Application added a subscriber: Aklapper. · View Herald Transcript

Krinkle moved this task from Untriaged to Sep 2020 on the Wikimedia-production-error board.Sep 16 2020, 7:00 PM

Krinkle updated the task description. (Show Details)

Krinkle moved this task from Sep 2020 to Older on the Wikimedia-production-error board.

Umherirrender added a project: JavaScript.Sep 16 2020, 7:32 PM

Jdlrobson added a project: Release-Engineering-Team (Logspam).Apr 3 2021, 12:39 AM

MBinder_WMF added a project: Growth-Team-Filtering.Apr 15 2021, 6:47 PM

thcipriani edited projects, added: Unowned-production-error; removed: Release-Engineering-Team (Logspam).Aug 24 2021, 10:18 PM

For wmf.23 the same error is reported (4 errors, the latest timestamp Sep 16, 2021 @ 20:00:02.556). All four errors are on frwiki.

stack_trace

at StepBuilder.prototype.canonicalizeStep https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:147:940
at callback https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:148:641
at Step.prototype.initialize/options.next https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:161:616
at mw.libs.guiders</guiders.doStep https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:541:976
at next https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:153:406
at onclick https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:151:681
at mw.libs.guiders</guiders._makeButtonListener/< https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:533:619
at dispatch https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:266:214
at add/elemData.handle https://fr.wikipedia.org/w/load.php?lang=fr&modules=ext.centralNotice.choiceData%2Cdisplay%2CgeoIP%2CimpressionDiet%2CkvStore%2CstartUp%7Cext.centralauth.ForeignApi%7Cext.centralauth.centralautologin.clearcookie%7Cext.cx.eventlogging.campaigns%7Cext.echo.api%2Cinit%7Cext.eventLogging%2CguidedTour%2CnavigationTiming%2CwikimediaEvents%7Cext.guidedTour.lib%2Cstyles%7Cext.guidedTour.lib.internal%7Cext.uls.common%2Ccompactlinks%2Cinterface%2Cpreferences%2Cwebfonts%7Cjquery%2Coojs%2Coojs-router%2Csite%7Cjquery.client%2Ccookie%2Cspinner%2CtextSelection%7Cjquery.spinner.styles%7Cjquery.uls.data%7Cmediawiki.ForeignApi%2CString%2CTitle%2CUri%2Capi%2Cbase%2Ccldr%2Ccookie%2Cexperiments%2CjqueryMsg%2Clanguage%2Cstorage%2Cuser%2Cutil%2CvisibleTimeout%7Cmediawiki.ForeignApi.core%7Cmediawiki.editfont.styles%7Cmediawiki.libs.guiders%2Cpluralruleparser%7Cmediawiki.page.ready%7Cmediawiki.page.watch.ajax%7Cmmv.bootstrap%2Chead%7Cmmv.bootstrap.autostart%7Cskins.vector.js%7Cuser.defaults%7Cwikibase.client.linkitem.init&skin=vector&version=1ru85:262:848

This is caused by the tour defined here https://fr.wikipedia.org/wiki/MediaWiki:Guidedtour-tour-tuto8.js. @Trizek-WMF perhaps you could ping someone in the frwiki community who would want to fix it?

Sgs merged a task: T297657: TypeError: Cannot read properties of undefined (reading 'step').Dec 21 2021, 10:59 AM

Sgs subscribed.

Sgs mentioned this in T297657: TypeError: Cannot read properties of undefined (reading 'step').Dec 21 2021, 11:13 AM

Most of the errors coming from the frwiki guided tours are caused by calls to the next() callback without a return value on some step definitions. Maintainers are navigating to a different page by doing things like window.location.href = mw.util.getUrl( 'Somepage' ); inside the callbacks. For instance in tuto1:

.next( function() {
   window.location.href = mw.util.getUrl( 'Framboise' );
} )

Or in tuto8:

.next( function() {
    gt.setTourCookie( 'tuto8' , 'ongletmodifier' );
    window.location.href = mw.util.getUrl( 'Utilisateur:' + mw.config.get( 'wgUserName' ) + '/Brouillon' ) + '?veaction=edit';
} )

Before contacting local admins we should come up with a fix proposal. The following code does not produce any JS errors but has the problem the step modal would/could be shown before the next navigated page is rendered leading to a inappropriate experience.

.next( function() {
   window.location.href = mw.util.getUrl( 'Framboise' );
   return 'titre';
} )

Alternatively the Wikipedia adventure guided tours uses rendered button links which add a query parameters to navigate to the following step in the tour ?tour=twa1&step=2. But I can't tell if this should be the recommended approach or we should provide a different one, which might involve changes in the GuidedTours JS API.

I can do the fix if I have clear instructions on how-to. :)

In T262839#7582715, @Sgs wrote:

Alternatively the Wikipedia adventure guided tours uses rendered button links which add a query parameters to navigate to the following step in the tour ?tour=twa1&step=2. But I can't tell if this should be the recommended approach or we should provide a different one, which might involve changes in the GuidedTours JS API.

It is accepted by communities, but I can't say if is a best practice from a technical perspective.

TheresNoTime moved this task from Backlog to Bugs on the MediaWiki-extensions-GuidedTour board.May 25 2022, 8:04 PM

Aklapper changed the subtype of this task from "Task" to "Bug Report".May 30 2022, 2:43 AM

(extension no longer part of wmf production - T235752)

In T262839#8900512, @Umherirrender wrote:

(extension no longer part of wmf production - T235752)

(Mixed up two different extensions)

Umherirrender unsubscribed.Jul 12 2023, 8:06 PM

Urbanecm_WMF removed projects: Growth-Team-Filtering, Growth-Team.Oct 27 2025, 11:51 PM

Restricted Application changed the subtype of this task from "Bug Report" to "Production Error". · View Herald TranscriptOct 27 2025, 11:51 PM

TypeError: rawStep is undefinedOpen, LowPublicPRODUCTION ERRORActions

Description

Related Objects

Event Timeline

TypeError: rawStep is undefined
Open, LowPublicPRODUCTION ERROR
Actions