VS Code extension v2.1.129: command 'claude-vscode.editor.openLast' not found on Windows

[hardikd-ajmerainfotech]

Description

Clicking the Claude Code button in the VS Code sidebar produces the error:

command 'claude-vscode.editor.openLast' not found

The extension appears to fail to activate properly on Windows, making the VS Code UI unusable.

Environment

Field	Value
Claude Code Extension	v2.1.129 (anthropic.claude-code)
VS Code	1.118.1 (user setup)
Commit	034f571df509819cc10b0c8129f66ef77a542f0e
Electron	39.8.8
OS	Windows 11 (Windows_NT x64 10.0.26200)

Steps to Reproduce

1. Install Claude Code extension v2.1.129 on VS Code 1.118.1 (Windows 11)
2. Click the Claude Code icon/button in the VS Code sidebar or activity bar

Expected Behavior

Claude Code panel opens in VS Code.

Actual Behavior

Error notification appears:

command 'claude-vscode.editor.openLast' not found

Additional Notes

• This error was previously reported for v2.1.51 (issues [BUG] command 'claude-vscode.editor.openLast' not found #28053, VS Code extension v2.1.51: commands not found (claude-vscode.editor.openLast) #28060, VS Code extension v2.1.51 fails to activate on Windows: hardcoded Linux CI path in extension.js #28081) and is apparently still present or has regressed in v2.1.129
• The CLI (claude in terminal) works fine — only the VS Code extension UI button is broken
• Extension was updated 21 minutes before the error was observed (auto-update may have introduced the regression)

[danendral]

I encounter exactly the same issue on Claude v2.1.129. Works normally when I downgraded to 2.1.128. Im using Windows 11, VS Code 1.118.1

[leonardassist]

downgrading to 2.1.128 resolves the issue.

[hamza2026]

@danendral @leonardassist How I will downgrade the claude from v2.1.129 to v2.1.128

[Zack-Chong]

Hi @hamza2026, u can go to extension icon at the left sidebar and find claude code, then click on the drop down of uninstall button there and select install specific version, you can find the v2.1.128 there.

[edwardkao6413]

But you can't use your plugin if you downgrade to lower version. That's another annoying points

[CStechgeek]

same issue bro. tired

[danendral]

@edwardkao6413 Seems like I can still use my plugin in lower version v2.1.128?

I've disabled the auto update feature due to this issue.

[edwardkao6413]

@danendral What's your Claude code version ? I can still use my plugin in Terminal mode, but not in vscode chat mode.
Mine Claude code is v2.1.129, but extension is v2.1.128.

[pixelbrain3d]

Same.

[KevinllBin]

Same.why does Anthropic keep making the same mistakes?

[haukino]

Downgrading to v2.1.128 fixed it for me.

[ym-peach]

我使用ai对这个问题进行了分析修复，但是我不知道是否具有普遍性，不过我的这个bug确实已经好转，可以使用，目前没有发现有什么其他的问题

I used AI to analyze and fix this problem, but I don't know if it is universal. However, my bug has indeed improved and can be used, and no other issues have been found so far.

claude-code-v2.1.129-win-bug-report.md
claude-code-v2.1.129-win-bug-report-en.md

[claude]

This is a duplicate of #56501, which was fixed as of version 2.1.131.