[Error] unhandlederror-Illegal value for lineNumber

[vs-code-engineering]

Error Message

unhandlederror-Illegal value for lineNumber

Stack Trace

    at vp.getLineMaxColumn (./src/vs/editor/common/model/textModel.ts:900:9)
    at HGo (./src/vs/editor/browser/widget/diffEditor/diffEditorViewModel.ts:400:42)
    at normalizeRangeMapping (./src/vs/editor/browser/widget/diffEditor/diffEditorViewModel.ts:385:44)
    at (anonymous) (./src/vs/editor/browser/widget/diffEditor/diffEditorViewModel.ts:385:35)
    at BGo (./src/vs/editor/browser/widget/diffEditor/diffEditorViewModel.ts:382:24)
    at normalizeDocumentDiff (./src/vs/editor/browser/widget/diffEditor/diffEditorViewModel.ts:306:12)

Raw Stack Trace (minified)

Error: Illegal value for lineNumber     at vp.getLineMaxColumn (out/vs/workbench/workbench.desktop.main.js:672:144)     at HGo (out/vs/workbench/workbench.desktop.main.js:850:23658)     at out/vs/workbench/workbench.desktop.main.js:850:23370     at Array.map (<anonymous>)     at out/vs/workbench/workbench.desktop.main.js:850:23363     at Array.map (<anonymous>)     at BGo (out/vs/workbench/workbench.desktop.main.js:850:23297)     at out/vs/workbench/workbench.desktop.main.js:850:21812

Details

Property	Value
Bucket ID	36e89c28-2ca9-2a84-132a-489011d7524d
Version	1.119.0
Commit	8b640eef
Last Seen	Thu May 07 2026 23:58:53 GMT+0000 (Coordinated Universal Time)
Platforms	Mac, Windows, Linux
Product	VSCode

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This issue was automatically created from the VS Code Errors Dashboard

[vs-code-engineering]

Stable Release Anomaly Details

Property	Value
Anomaly type	new
Previous stable	1.118.1
Current stable	1.119.0
Users on current stable	1,239

Deminified key frames: textModel.ts:getLineMaxColumn → diffEditorViewModel.ts (normalizeRangeMapping / normalizeDocumentDiff)

This error is new in stable 1.119.0 — it was not present in 1.118.1. The crash occurs in the diff editor view model when normalizing document diffs with an invalid line number.

Generated by errors-stable-scan · ● 9M · ◷