[BUG] Error: Claude Code process exited with code 3221225477

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

As soon I open Claude Code extension on VS Code, it causes the error below:

2026-01-21 10:04:45.133 [info] Claude spawned on channel 939140jzetp with PID: 26048
2026-01-21 10:04:52.865 [info] Closing Claude on channel: 939140jzetp
2026-01-21 10:04:52.866 [error] Error from Claude (on channel 939140jzetp): Error: Claude Code process exited with code 3221225477
2026-01-21 10:04:59.380 [info] Received message from webview: {"type":"request","requestId":"5ram2iopc5q","request":{"type":"open_output_panel"}}

Claude Code extension version: anthropic.claude-code@2.1.11

The 2.1.14 is not available on marketplace yet.

<img width="674" height="444" alt="Image" src="https://github.com/user-attachments/assets/fe9deb0d-bebc-4549-81a7-887ef6308012" />

What Should Happen?

Claude code should works

Error Messages/Logs

2026-01-21 10:04:45.133 [info] Claude spawned on channel 939140jzetp with PID: 26048
2026-01-21 10:04:52.865 [info] Closing Claude on channel: 939140jzetp
2026-01-21 10:04:52.866 [error] Error from Claude (on channel 939140jzetp): Error: Claude Code process exited with code 3221225477
2026-01-21 10:04:59.380 [info] Received message from webview: {"type":"request","requestId":"5ram2iopc5q","request":{"type":"open_output_panel"}}

Steps to Reproduce

1. Open Vs Code Standard Version
2. Click on Claude Code button o top right.
3. Wait for error

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.14 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_