[Error] unhandlederror-Uncaught Error: Assertion Failed Error: Assertion Failed at Ve (out/vs/editor/co...

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#319,615 opened on Jun 2, 2026 1 comment 0 reactions 1 assignee View on GitHub

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Description

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

Error Message

unhandlederror-Uncaught Error: Assertion Failed  Error: Assertion Failed     at Ve (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:383:11218)     at nn (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:422:5328)     at Xn.computeDiff (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:425:1556)     at su (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:431:25623)     at async r.$computeStringDiff (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:431:20978)

Stack Trace

    at Ve (./src/vs/base/common/assert.ts:76:20)
    at assertFn (./src/vs/editor/common/diff/rangeMapping.ts:340:1)
    at lineRangeMappingFromRangeMappings (./src/vs/editor/common/diff/defaultLinesDiffComputer/defaultLinesDiffComputer.ts:147:18)
    at su (./src/vs/editor/common/services/editorWebWorker.ts:561:30)
    at async r.$computeStringDiff (./src/vs/editor/common/services/editorWebWorker.ts:208:10)

Raw Stack Trace (minified)

Uncaught Error: Assertion Failed  Error: Assertion Failed     at Ve (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:383:11218)     at nn (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:422:5328)     at Xn.computeDiff (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:425:1556)     at su (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:431:25623)     at async r.$computeStringDiff (out/vs/editor/common/services/editorWebWorkerMain.js#editorWorkerService:431:20978)

Details

Property	Value
Bucket ID	`80fc754c-fddd-dfa0-5cb6-c89d009bb797`
Version	1.122.1
Commit	`8761a556`
Last Seen	Mon Jun 01 2026 23:55:39 GMT+0000 (Coordinated Universal Time)
Platforms	Windows, Mac, Linux
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

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