[Error] [GitHub.copilot-chat] unhandlederror-Illegal value for `line`

[vs-code-engineering]

Error Message

unhandlederror-Illegal value for `line`

Stack Trace

⚠️ Stack not deminified — no frames could be mapped to original source. The frames below are minified; line/column numbers refer to the bundled JavaScript, not the original TypeScript source. To deminify, either re-run the create_issue MCP tool with the VS Code build commit hash (and, for extension errors, the extension id + version), or call the standalone deminify_stack MCP tool.

Error: Illegal value for `line` 	at cE._lineAt (<REDACTED: user-file-path>:510:1317) 	at Object.lineAt (<REDACTED: user-file-path>:510:67) 	at bv.provideAltTextQuickFix (<REDACTED: user-file-path>:2924:9224) 	at bv.provideCodeActions (<REDACTED: user-file-path>:2924:8131) 	at process.processTicksAndRejections (node:<REDACTED: user-file-path>:103:5) 	at async i.provideCodeActions (<REDACTED: user-file-path>:530:141830)

Details

Property	Value
Bucket ID	d64f5c7e-2a24-bfa1-8e1f-7e988217c770
Extension Version	0.49.0
Last Seen	Sun May 24 2026 23:17:44 GMT+0000 (Coordinated Universal Time)
Platforms	linux, darwin
Product	VSCode

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This issue was automatically created from the VS Code Errors Dashboard

[vs-code-engineering]

Regression Details

Property	Value
Product	VSCode
Extension	GitHub.copilot-chat
Regression type	spike
Spike factor	490x increase
Baseline version	0.48.1 (0 users)
Current version	0.49.0 (490 users)
Bucket ID	d64f5c7e-2a24-bfa1-8e1f-7e988217c770

Note: Stack deminification could not map frames to original source. Manual investigation recommended.

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Posted by errors-regression workflow run #26408324786

Generated by errors-regression-scan · ● 18.5M · ◷