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[Error] unhandlederror-[LanguageService._onDidChange] potential listener LEAK detected, popular — textModel / modelService #312366

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Description

@vs-code-engineering

Error Message

unhandlederror-[LanguageService._onDidChange] potential listener LEAK detected, popular

Stack Trace

    at a.create (./src/vs/base/common/event.ts:1068:14)
    at oR._event [as event] (./src/vs/base/common/event.ts:1272:33)
    at oR.onFirstObserverAdded (./src/vs/base/common/observableInternal/observables/observableFromEvent.ts:95:28)
    at oR.addObserver (./src/vs/base/common/observableInternal/observables/baseObservable.ts:161:8)
    at Object.onWillAddFirstListener (./src/vs/base/common/event.ts:804:17)
    at vXe._event [as onDidChange] (./src/vs/base/common/event.ts:1281:19)
    at new hp (./src/vs/editor/common/model/textModel.ts:354:65)
    at a._createInstance (./src/vs/platform/instantiation/common/instantiationService.ts:162:17)
    at a.createInstance (./src/vs/platform/instantiation/common/instantiationService.ts:128:17)
    at yet._createModelData (./src/vs/editor/common/services/modelService.ts:310:54)
    at yet.createModel (./src/vs/editor/common/services/modelService.ts:444:20)
    at G0.doCreateTextEditorModel (./src/vs/workbench/common/editor/textEditorModel.ts:172:0)
    at G0.createTextEditorModel (./src/vs/workbench/common/editor/textEditorModel.ts:166:0)
    at G0.doCreateTextModel (./src/vs/workbench/services/textfile/common/textFileEditorModel.ts:565:0)
    at G0.resolveFromContent (./src/vs/workbench/services/textfile/common/textFileEditorModel.ts:547:0)
    at G0.resolveFromFile (./src/vs/workbench/services/textfile/common/textFileEditorModel.ts:471:0)
    at async G0.resolve (./src/vs/workbench/services/textfile/common/textFileEditorModel.ts:307:0)
    at async PGe.doResolve (./src/vs/workbench/services/textfile/common/textFileEditorModelManager.ts:446:0)
    at async get.doCreateReferencedObject (./src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:57:17)
    at async sIe.acquire (./src/vs/base/common/lifecycle.ts:727:18)

Raw Stack Trace (minified)
Error     at a.create (out/vs/workbench/workbench.desktop.main.js:403:18436)     at oR._event [as event] (out/vs/workbench/workbench.desktop.main.js:405:2009)     at oR.onFirstObserverAdded (out/vs/workbench/workbench.desktop.main.js:407:19701)     at oR.addObserver (out/vs/workbench/workbench.desktop.main.js:407:1590)     at Object.onWillAddFirstListener (out/vs/workbench/workbench.desktop.main.js:403:16116)     at vXe._event [as onDidChange] (out/vs/workbench/workbench.desktop.main.js:405:2276)     at new hp (out/vs/workbench/workbench.desktop.main.js:668:36700)     at a._createInstance (out/vs/workbench/workbench.desktop.main.js:1904:2000)     at a.createInstance (out/vs/workbench/workbench.desktop.main.js:1904:1440)     at yet._createModelData (out/vs/workbench/workbench.desktop.main.js:1809:2490)     at yet.createModel (out/vs/workbench/workbench.desktop.main.js:1810:898)     at G0.doCreateTextEditorModel (out/vs/workbench/workbench.desktop.main.js:936:15249)     at G0.createTextEditorModel (out/vs/workbench/workbench.desktop.main.js:936:15075)     at G0.doCreateTextModel (out/vs/workbench/workbench.desktop.main.js:1785:17780)     at G0.resolveFromContent (out/vs/workbench/workbench.desktop.main.js:1785:17617)     at G0.resolveFromFile (out/vs/workbench/workbench.desktop.main.js:1785:16719)     at async G0.resolve (out/vs/workbench/workbench.desktop.main.js:1785:14593)     at async PGe.doResolve (out/vs/workbench/workbench.desktop.main.js:4910:8863)     at async get.doCreateReferencedObject (out/vs/workbench/workbench.desktop.main.js:1785:27870)     at async sIe.acquire (out/vs/workbench/workbench.desktop.main.js:403:3866)     at async fet.createModelReference (out/vs/workbench/workbench.desktop.main.js:1785:30166)     at async ZTe._handleAsResourceInput (out/vs/workbench/workbench.desktop.main.js:969:11608)     at async ZTe.$tryOpenDocument (out/vs/workbench/workbench.desktop.main.js:969:10864)

Details

Property Value
Bucket ID cc6cf24d-f55f-96d1-c890-7679576b48af
Version 1.118.0-insider
Commit 659d444a
Last Seen Thu Apr 23 2026 23:58:17 GMT+0000 (Coordinated Universal Time)
Platforms Windows, Mac, Linux
Product VSCode

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