[Error] unhandlederror-ModelService: Cannot add model because it already exists!

Open

#322,399 opened on Jun 22, 2026 1 comment 0 reactions 2 assignees View on GitHub

Nobody has claimed this yet.

Assessment

This issue has not been assessed yet.

Description

ai-analyzed ai-generated bug error-telemetry recent-regression stable-anomaly

Error Message

unhandlederror-ModelService: Cannot add model because it already exists!

Stack Trace

    at Ont._createModelData (./src/vs/editor/common/services/modelService.ts:352:9)
    at Ont.createModel (./src/vs/editor/common/services/modelService.ts:444:20)
    at (anonymous) (./src/vs/workbench/contrib/output/common/outputChannelModel.ts:496:35)
    at bodyFn (./src/vs/base/common/async.ts:1867:10)
    at Object.i [as withAsyncBody] (./src/vs/base/common/async.ts:1865:9)
    at pye.loadModel (./src/vs/workbench/contrib/output/common/outputChannelModel.ts:493:35)
    at vGe.provideTextContent (./src/vs/workbench/contrib/output/browser/outputServices.ts:401:0)
    at Lnt.ensureResolvedTextModelContent (./src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:192:22)
    at Lnt.doCreateReferencedObject (./src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:65:14)
    at Lnt.createReferencedObject (./src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:37:14)
    at Lnt.acquire (./src/vs/base/common/lifecycle.ts:694:42)
    at dCe.acquire (./src/vs/base/common/lifecycle.ts:724:39)
    at Mnt.createModelReference (./src/vs/workbench/services/textmodelResolver/common/textModelResolverService.ts:242:41)
    at nk.resolve (./src/vs/workbench/common/editor/textResourceEditorInput.ts:169:47)
    at Dmt.setInput (./src/vs/workbench/browser/parts/editor/textResourceEditor.ts:57:36)
    at async Dmt.setInput (./src/vs/workbench/contrib/output/browser/outputView.ts:310:0)

Raw Stack Trace (minified)

Error: ModelService: Cannot add model because it already exists!     at Ont._createModelData (out/vs/workbench/workbench.desktop.main.js:1870:3251)     at Ont.createModel (out/vs/workbench/workbench.desktop.main.js:1871:898)     at out/vs/workbench/workbench.desktop.main.js:4003:731     at out/vs/workbench/workbench.desktop.main.js:434:84566     at new Promise (<anonymous>)     at Object.i [as withAsyncBody] (out/vs/workbench/workbench.desktop.main.js:434:84531)     at pye.loadModel (out/vs/workbench/workbench.desktop.main.js:4003:638)     at vGe.provideTextContent (out/vs/workbench/workbench.desktop.main.js:4003:11929)     at Lnt.ensureResolvedTextModelContent (out/vs/workbench/workbench.desktop.main.js:1846:29283)     at Lnt.doCreateReferencedObject (out/vs/workbench/workbench.desktop.main.js:1846:28034)     at Lnt.createReferencedObject (out/vs/workbench/workbench.desktop.main.js:1846:27546)     at Lnt.acquire (out/vs/workbench/workbench.desktop.main.js:431:3513)     at dCe.acquire (out/vs/workbench/workbench.desktop.main.js:431:3832)     at Mnt.createModelReference (out/vs/workbench/workbench.desktop.main.js:1846:30199)     at nk.resolve (out/vs/workbench/workbench.desktop.main.js:1047:32698)     at Dmt.setInput (out/vs/workbench/workbench.desktop.main.js:1244:95569)     at async Dmt.setInput (out/vs/workbench/workbench.desktop.main.js:4003:20662)

Details

Property	Value
Bucket ID	`d24ca92f-fb3c-3369-dc19-792878e12908`
Version	1.125.1
Commit	`fcf60477`
Last Seen	Sun Jun 21 2026 23:58:17 GMT+0000 (Coordinated Universal Time)
Platforms	Windows, Linux, Mac
Product	VSCode

This issue was automatically created from the VS Code Errors Dashboard

Dominant language: TypeScript
Stars: 193k
Forks: 42.9k
PR merge metrics: PR metrics pending

Contributor guide

Open the contributing guide

First steps

Read the whole issue, then the project's contributing guide.
Comment on the issue to say you are picking it up — it saves two people doing the same work.
Fork the repository and make your change on a branch.
Open a pull request that references the issue number.

Similar issues

[Bug]: Session row status indicator sits flush against the selection pill's rounded corner Open

clawsweeper:fix-shape-clear clawsweeper:queueable-fix clawsweeper:source-repro impact:ux-friction issue-rating: 🦞 diamond lobster no-stale P3

Difficulty 2/5 1-3 hours Newbie friendliness 78/100

openclaw/openclaw#154145 · 2 comments · 1 reaction · Opened Sep 20, 2026
[good first issue] 🀄 Add new Grammar Point 265 (good-first-issue) Open

community first-timers-only good first issue hacktoberfest help wanted low hanging fruit up-for-grabs

Difficulty 1/5 Under an hour Newbie friendliness 76/100

lingdojo/kana-dojo#30632 · 1 comment · 5 reactions · Opened Sep 20, 2026
[Duplicate Code] Repeated filtered model-alias assembly in proxy server Open

code-quality refactoring

Difficulty 2/5 1-3 hours Newbie friendliness 84/100

github/gh-aw-firewall#8816 · Opened Sep 20, 2026
quickjs: support `timeout=None` (no per-call deadline) in `CodeInterpreterMiddleware` Open

integration:quickjs org:external priority:backlog topic:code-interpreter topic:middleware type:feature

Difficulty 2/5 1-3 hours Newbie friendliness 74/100

langchain-ai/deepagents#6450 · Opened Sep 20, 2026
`QuotedTweet.self_thread` is optional in syndication responses Open

Difficulty 1/5 Under an hour Newbie friendliness 88/100

vercel/react-tweet#225 · Opened Sep 20, 2026

More TypeScript issues