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Maniphest T426273

Cannot read properties of undefined (reading 'Z1K1')
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Description

This input:

{"Z1K1":"Z7","Z7K1":{"Z1K1":"Z8","Z8K1":["Z17",{"Z1K1":"Z17","Z17K1":"Z6091","Z17K2":"Z825K1","Z17K3":{"Z1K1":"Z12","Z12K1":["Z11",{"Z1K1":"Z11","Z11K1":"Z1002","Z11K2":"wikidata item reference"}]}},{"Z1K1":"Z17","Z17K1":"Z60","Z17K2":"Z825K2","Z17K3":{"Z1K1":"Z12","Z12K1":["Z11",{"Z1K1":"Z11","Z11K1":"Z1002","Z11K2":"language"}]}},{"Z1K1":"Z17","Z17K1":"Z20420","Z17K2":"Z825K3","Z17K3":{"Z1K1":"Z12","Z12K1":["Z11",{"Z1K1":"Z11","Z11K1":"Z1002","Z11K2":"date"}]}}],"Z8K2":"Z89","Z8K3":["Z20"],"Z8K4":["Z14",{"Z1K1":"Z14","Z14K1":"Z825","Z14K2":{"Z1K1":"Z7","Z7K1":"Z31331","Z31331K1":{"Z1K1":"Z7","Z7K1":"Z808","Z808K1":["Z1"]}}}],"Z8K5":"Z825"},"Z825K1":{"Z1K1":"Z6091","Z6091K1":"Q692"},"Z825K2":"Z1002","Z825K3":{"Z1K1":"Z7","Z7K1":"Z20808","Z20808K1":"2026-05-11","Z20808K2":"Z1002"}}

resulted in:

{"Z1K1": "Z22", "Z22K1": "Z24", "Z22K2": {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z883", "Z883K1": "Z6", "Z883K2": "Z1"}, "K1": [{"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "errors", "K2": {"Z1K1": "Z5", "Z5K1": "Z507", "Z5K2": {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z885", "Z885K1": "Z507"}, "Z507K1": {"Z1K1": "Z99", "Z99K1": {"Z1K1": "Z7", "Z7K1": {"Z1K1": "Z8", "Z8K1": ["Z17", {"Z1K1": "Z17", "Z17K1": "Z6091", "Z17K2": "Z825K1", "Z17K3": {"Z1K1": "Z12", "Z12K1": ["Z11", {"Z1K1": "Z11", "Z11K1": "Z1002", "Z11K2": "wikidata item reference"}]}}, {"Z1K1": "Z17", "Z17K1": "Z60", "Z17K2": "Z825K2", "Z17K3": {"Z1K1": "Z12", "Z12K1": ["Z11", {"Z1K1": "Z11", "Z11K1": "Z1002", "Z11K2": "language"}]}}, {"Z1K1": "Z17", "Z17K1": "Z20420", "Z17K2": "Z825K3", "Z17K3": {"Z1K1": "Z12", "Z12K1": ["Z11", {"Z1K1": "Z11", "Z11K1": "Z1002", "Z11K2": "date"}]}}], "Z8K2": "Z89", "Z8K3": ["Z20"], "Z8K4": ["Z14", {"Z1K1": "Z14", "Z14K1": "Z825", "Z14K2": {"Z1K1": "Z7", "Z7K1": "Z31331", "Z31331K1": {"Z1K1": "Z7", "Z7K1": "Z808", "Z808K1": ["Z1"]}}}], "Z8K5": "Z825"}, "Z825K1": {"Z1K1": "Z6091", "Z6091K1": "Q692"}, "Z825K2": "Z1002", "Z825K3": {"Z1K1": "Z7", "Z7K1": "Z20808", "Z20808K1": "2026-05-11", "Z20808K2": "Z1002"}}}, "Z507K2": {"Z1K1": "Z5", "Z5K1": "Z500", "Z5K2": {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z885", "Z885K1": "Z500"}, "Z500K1": "Orchestration failed with unidentified error: TypeError: Cannot read properties of undefined (reading 'Z1K1')."}}}}}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "implementationType", "K2": "Z14K2"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "implementationId", "K2": {"Z1K1": "Z6", "Z6K1": "Z23983"}}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "wasmedgeTotalExecutionTime", "K2": "67102325653618"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "wasmedgeGasCost", "K2": "5814"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "executionMemoryUsage", "K2": "4.55 MiB"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "executionCpuUsage", "K2": "67102640 \u03bcs"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "programmingLanguageVersion", "K2": "QuickJS v0.5.0-alpha"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "evaluationMemoryUsage", "K2": "137.12 MiB"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "evaluationCpuUsage", "K2": "11.418 ms"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "evaluationStartTime", "K2": "2026-05-13T23:05:14.276Z"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "evaluationEndTime", "K2": "2026-05-13T23:05:14.352Z"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "evaluationDuration", "K2": "76 ms"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "evaluationHostname", "K2": "ec43c80f9b05"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "orchestrationMemoryUsage", "K2": "157.35 MiB"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "orchestrationCpuUsage", "K2": "451.666 ms"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "orchestrationStartTime", "K2": "2026-05-13T23:05:09.901Z"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "orchestrationEndTime", "K2": "2026-05-13T23:05:15.134Z"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "orchestrationDuration", "K2": "5233 ms"}, {"Z1K1": {"Z1K1": "Z7", "Z7K1": "Z882", "Z882K1": "Z6", "Z882K2": "Z1"}, "K1": "orchestrationHostname", "K2": "9f3b511053a2"}]}}

Details

Related Changes in Gerrit:
SubjectRepoBranchLines +/-
wikifunctions: Upgrade orchestrator from 2026-05-12-210548 to 2026-05-19-145724operations/deployment-chartsmaster+1 -1
wikifunctions: Upgrade evaluators from 2026-05-12-211330 to 2026-05-18-230044operations/deployment-chartsmaster+4 -4
Update function-schemata sub-module to HEAD (852dff0)mediawiki/extensions/WikiLambdamaster+1 -1
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Related Changes in GitLab:
TitleReferenceAuthorSource BranchDest Branch
Update function-schemata sub-module to HEAD (852dff0)repos/abstract-wiki/wikifunctions/function-orchestrator!673jforrestersync-function-schematamain
Update function-schemata sub-module to HEAD (852dff0)repos/abstract-wiki/wikifunctions/function-evaluator!535jforrestersync-function-schematamain
Update function-schemata sub-module to HEAD (852dff0)repos/abstract-wiki/wikifunctions/wikilambda-cli!113jforrestersync-function-schematamain
utils.isZList: Don't explode if we've been passed null or undefinedrepos/abstract-wiki/wikifunctions/function-schemata!347jforresterT426273main
Customize query in GitLab

Related Objects

Event Timeline

ecarg created this task.Wed, May 13, 11:13 PM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptWed, May 13, 11:13 PM
ecarg triaged this task as Medium priority.Wed, May 13, 11:13 PM
ecarg changed the task status from Open to In Progress.Wed, May 13, 11:16 PM
ecarg added a project: Abstract Wikipedia team (26Q4 (Apr–Jun)).
ecarg moved this task from Incoming to Ready on the Abstract Wikipedia team (26Q4 (Apr–Jun)) board.
ecarg moved this task from Ready to In Engineering on the Abstract Wikipedia team (26Q4 (Apr–Jun)) board.
ecarg closed this task as Resolved.EditedThu, May 14, 11:56 AM

Execution proceeded despite no canonical connected implementation on Z825 — implementation appears to have been injected inline via Z8K4 in the request itself. Also, Z825K3 is passed as an unevaluated Z7 (call to Z20808) rather than a literal Z20420, which may have cause of the TypeError. Deferring for now.

Jdforrester-WMF subscribed.Thu, May 14, 7:59 PM

Let's fix this to stop emitting a dev-facing error, at least? :-)

Jdforrester-WMF reopened this task as Open.Thu, May 14, 7:59 PM
Jdforrester-WMF changed the subtype of this task from "Task" to "Bug Report".
CodeReviewBot added a project: Patch-For-Review.Thu, May 14, 9:02 PM

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-schemata/-/merge_requests/347

utils.isZList: Don't explode if we've been passed null or undefined

CodeReviewBot added a comment.Fri, May 15, 4:08 PM

ecarg merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-schemata/-/merge_requests/347

utils.isZList: Don't explode if we've been passed null or undefined

Maintenance_bot removed a project: Patch-For-Review.Fri, May 15, 4:31 PM
Jdforrester-WMF changed the task status from Open to In Progress.Fri, May 15, 9:13 PM
Jdforrester-WMF moved this task from In Engineering to Ready to deploy on the Abstract Wikipedia team (26Q4 (Apr–Jun)) board.
Jdforrester-WMF added projects: MW-1.47-notes (1.47.0-wmf.3; 2026-05-19), Essential-Work.
gerritbot added a comment.Fri, May 15, 9:36 PM

Change #1287952 had a related patch set uploaded (by Jforrester; author: Jforrester):

[mediawiki/extensions/WikiLambda@master] Update function-schemata sub-module to HEAD (852dff0)

https://gerrit.wikimedia.org/r/1287952

gerritbot added a project: Patch-For-Review.Fri, May 15, 9:36 PM
CodeReviewBot added a comment.Fri, May 15, 9:37 PM

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/wikilambda-cli/-/merge_requests/113

Update function-schemata sub-module to HEAD (852dff0)

CodeReviewBot added a comment.Fri, May 15, 9:37 PM

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-orchestrator/-/merge_requests/673

Update function-schemata sub-module to HEAD (852dff0)

CodeReviewBot added a comment.Fri, May 15, 9:37 PM

jforrester opened https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-evaluator/-/merge_requests/535

Update function-schemata sub-module to HEAD (852dff0)

Jdforrester-WMF mentioned this in rMSFE0d4b3f8f5b6a: Update function-schemata sub-module to HEAD (852dff0).Fri, May 15, 9:37 PM
CodeReviewBot added a comment.Mon, May 18, 2:13 PM

jforrester merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-orchestrator/-/merge_requests/673

Update function-schemata sub-module to HEAD (852dff0)

CodeReviewBot added a comment.Mon, May 18, 9:19 PM

jforrester merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/function-evaluator/-/merge_requests/535

Update function-schemata sub-module to HEAD (852dff0)

Jdforrester-WMF mentioned this in rMSFEa0fe49c2f715: Update function-schemata sub-module to HEAD (852dff0).Mon, May 18, 9:23 PM
CodeReviewBot added a comment.Tue, May 19, 12:43 AM

ecarg merged https://gitlab.wikimedia.org/repos/abstract-wiki/wikifunctions/wikilambda-cli/-/merge_requests/113

Update function-schemata sub-module to HEAD (852dff0)

gerritbot added a comment.Tue, May 19, 12:58 AM

Change #1287952 merged by jenkins-bot:

[mediawiki/extensions/WikiLambda@master] Update function-schemata sub-module to HEAD (852dff0)

https://gerrit.wikimedia.org/r/1287952

ReleaseTaggerBot edited projects, added: MW-1.47-notes (1.47.0-wmf.4; 2026-05-26); removed: MW-1.47-notes (1.47.0-wmf.3; 2026-05-19).Tue, May 19, 1:00 AM
Maintenance_bot removed a project: Patch-For-Review.Tue, May 19, 1:31 AM
gerritbot added a comment.Tue, May 19, 2:48 PM

Change #1289367 had a related patch set uploaded (by Jforrester; author: Jforrester):

[operations/deployment-charts@master] wikifunctions: Upgrade evaluators from 2026-05-12-211330 to 2026-05-18-230044

https://gerrit.wikimedia.org/r/1289367

gerritbot added a project: Patch-For-Review.Tue, May 19, 2:48 PM
gerritbot added a comment.Tue, May 19, 2:50 PM

Change #1289367 merged by jenkins-bot:

[operations/deployment-charts@master] wikifunctions: Upgrade evaluators from 2026-05-12-211330 to 2026-05-18-230044

https://gerrit.wikimedia.org/r/1289367

gerritbot added a comment.Tue, May 19, 3:11 PM

Change #1289373 had a related patch set uploaded (by Jforrester; author: Jforrester):

[operations/deployment-charts@master] wikifunctions: Upgrade orchestrator from 2026-05-12-210548 to 2026-05-19-145724

https://gerrit.wikimedia.org/r/1289373

gerritbot added a comment.Tue, May 19, 3:20 PM

Change #1289373 merged by jenkins-bot:

[operations/deployment-charts@master] wikifunctions: Upgrade orchestrator from 2026-05-12-210548 to 2026-05-19-145724

https://gerrit.wikimedia.org/r/1289373

Jdforrester-WMF closed this task as Resolved.Tue, May 19, 3:29 PM
Jdforrester-WMF moved this task from Ready to deploy to Needs Sign-off on the Abstract Wikipedia team (26Q4 (Apr–Jun)) board.
Maintenance_bot removed a project: Patch-For-Review.Tue, May 19, 3:31 PM
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