[BUG] The extension 'Claude Code for VS Code' shows a completely blank page.

[zhxiaokang]

Preflight Checklist

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

What's Wrong?

I have installed the extension on my VS Code, but when I click on the icon, I only have a blank page.

What Should Happen?

I also see a message popped out at the bottom right corner: v is not iterable.

Error Messages/Logs

Error: v is not iterable
onDidChangeNotification    @    notificationsAlerts.ts:40

Steps to Reproduce

I have installed the extension on my VS Code, but when I click on the icon, I only have a blank page.

Claude Model

Sonnet (default)

Is this a regression?

No, this never worked

Last Working Version

No response

Claude Code Version

2.1.76

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

No response

[github-actions]

Found 2 possible duplicate issues:

1. [BUG] "v is not iterable" - Claude Code Panel fails to load on Antigravity (VSCode OSS 1.107.0) #29336
2. [BUG] z is not iterable #34123

This issue will be automatically closed as a duplicate in 3 days.

• If your issue is a duplicate, please close it and 👍 the existing issue instead
• To prevent auto-closure, add a comment or 👎 this comment

🤖 Generated with Claude Code

[MustakimShaikh01]

I am experiencing the same issue on macOS (Apple Silicon - M2).

When clicking the Claude Code icon in VS Code, the panel opens but shows a completely blank page, and VS Code displays the following notification:

Error: v is not iterable

Environment:

• VS Code: (your VS Code version)
• Claude Code Extension: 2.1.76
• OS: macOS (Apple Silicon M2)
• Model: Sonnet
• Platform: Anthropic API

This seems similar to the duplicate issues mentioned by the bot, but confirming that it also occurs on macOS.

[LZG888999]

重新安装VS与扩展都不行，依然是这个问题。网上降级可以，2.1.45.还是不行

[github-actions]

Closing for now — inactive for too long. Please open a new issue if this is still relevant.

[github-actions]

This issue has been automatically locked since it was closed and has not had any activity for 7 days. If you're experiencing a similar issue, please file a new issue and reference this one if it's relevant.