VS Code extension v2.1.51: commands not found (claude-vscode.editor.openLast)

[dev-WRS]

Description

After updating to Claude Code VS Code extension v2.1.51, all Claude commands stopped working. The commands are registered in package.json but VS Code reports them as not found:

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

Steps to Reproduce

1. Update Claude Code VS Code extension to v2.1.51 (win32-x64)
2. Restart VS Code / reload window
3. Try any Claude command via Command Palette (e.g., "Claude Code: Open in New Tab")

Expected Behavior

Commands should work as they did in previous versions.

Actual Behavior

All Claude commands fail with "command not found". The extension appears to not activate properly.

Workaround

Rolling back to a previous version via "Install Another Version..." restores functionality.

Environment

• VS Code: Windows 11
• Extension version: 2.1.51 (win32-x64)
• Platform: Windows 11 Home 10.0.26200

[cubicj]

Got the same issue

[github-actions]

Found 3 possible duplicate issues:

1. [BUG] command 'claude-vscode.editor.openLast' not found #28053
2. [BUG] TypeError: createRequire fails with hardcoded Linux path on Windows — extension fails to activate (v2.1.51) #28054
3. [BUG] VS Code extension fails to activate on Windows — hardcoded Linux path in extension.js #28056

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
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🤖 Generated with Claude Code

[davidjoshua7692-code]

same issue here

[gemron]

same

[gemron]

Activating extension Anthropic.claude-code failed due to an error:
2026-02-24 11:05:05.686 [error] TypeError: The argument 'filename' must be a file URL object, file URL string, or absolute path string. Received 'file:///home/runner/work/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'
at Module.createRequire (node:internal/modules/cjs/loader:1915:13)
at Object. (c:\Users\guome.vscode\extensions\anthropic.claude-code-2.1.51-win32-x64\extension.js:45:4602)
at Module._compile (node:internal/modules/cjs/loader:1714:14)
at Module._extensions..js (node:internal/modules/cjs/loader:1848:10)
at Module.load (node:internal/modules/cjs/loader:1448:32)
at Module._load (node:internal/modules/cjs/loader:1270:12)
at c._load (node:electron/js2c/node_init:2:17993)
at e._load (file:///c:/Users/guome/AppData/Local/Programs/Microsoft%20VS%20Code/072586267e/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:405:6055)
at t._load (file:///c:/Users/guome/AppData/Local/Programs/Microsoft%20VS%20Code/072586267e/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:223:22773)
at s._load (file:///c:/Users/guome/AppData/Local/Programs/Microsoft%20VS%20Code/072586267e/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:215:24706)
at TracingChannel.traceSync (node:diagnostics_channel:328:14)
at wrapModuleLoad (node:internal/modules/cjs/loader:244:24)
at Module.require (node:internal/modules/cjs/loader:1470:12)
at Module.require (c:\Users\guome.vscode\extensions\github.copilot-chat-0.37.8\dist\extension.js:382:36169)
at require (node:internal/modules/helpers:147:16)
at pee.Cb (file:///c:/Users/guome/AppData/Local/Programs/Microsoft%20VS%20Code/072586267e/resources/app/out/vs/workbench/api/node/extensionHostProcess.js:254:1256)

[Yunyang599]

downgrade the claude version to 2.1.49 in VS, and it works, the new version 2.1.51 has problems

[SlothClient]

same

[justdying]

the same

[StealUrKill]

Used Claude to Fix Claude, works great.

PS C:\Users\HSS> powershell.exe -ExecutionPolicy Bypass -File .\fix-claude-code-extension.ps1
Found 1 Claude Code extension(s):

[anthropic.claude-code-2.1.51-win32-x64] Found 2 occurrence(s) of the bad CI path. Patching...
[anthropic.claude-code-2.1.51-win32-x64] Backup saved -> extension.js.bak
[anthropic.claude-code-2.1.51-win32-x64] Fix 1 (createRequire): replaced 1 occurrence(s)
[anthropic.claude-code-2.1.51-win32-x64] Fix 2 (path resolver): replaced 1 occurrence(s)
[anthropic.claude-code-2.1.51-win32-x64] Patched successfully

Done. Reload VSCode to apply: Ctrl+Shift+P -> 'Developer: Reload Window'

#
# Fixes Claude Code VSCode extension activation failure on Windows.
#
# Error:
#   Activating extension 'Anthropic.claude-code' failed:
#   The argument 'filename' must be a file URL object, file URL string,
#   or absolute path string. Received 'file:///home/runner/work/...'
#
# Root cause:
#   The extension bundle contains two hardcoded Linux CI build paths
#   (file:///home/runner/work/...). On Windows, Node.js rejects these
#   URLs in fileURLToPath() because they have no Windows drive letter.
#   This crashes the extension immediately at activation.
#
# What this script patches:
#   Fix 1 - createRequire call:  crashes at activation time
#     .createRequire("file:///home/runner/.../sdk.mjs")
#     -> .createRequire(__filename)   (use actual file path instead)
#
#   Fix 2 - path resolution call:  crashes when agent SDK is invoked
#     SomeFunc("file:///home/runner/.../sdk.mjs")
#     -> inline child_process lookup for the claude CLI on PATH
#
# Usage:
#   Right-click -> "Run with PowerShell"
#   OR from a PowerShell prompt: .\fix-claude-code-extension.ps1

$ErrorActionPreference = "Stop"

$extensionRoot = "$env:USERPROFILE\.vscode\extensions"
$badUrl        = 'file:///home/runner/work/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'

# ---- Regex patterns (stable across minified versions) ----

# Fix 1: .createRequire("file:///home/...sdk.mjs")
#   The method name createRequire is stable even in minified code.
$pattern1     = '\.createRequire\("file:///home/runner/work/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk\.mjs"\)'
$replacement1 = '.createRequire(__filename)'

# Fix 2: anyMinifiedName("file:///home/...sdk.mjs")
#   After fix 1 removes the createRequire case, any remaining call
#   with this URL is the fileURLToPath wrapper (Ye or similar).
#   Replace it with an inline lookup that finds the claude CLI on PATH.
$pattern2     = '[a-zA-Z_$][a-zA-Z0-9_$]*\("file:///home/runner/work/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk\.mjs"\)'
$replacement2 = '(function(){try{return(require("child_process").spawnSync(process.platform==="win32"?"where.exe":"which",["claude"],{encoding:"utf8"}).stdout||"").split(/[\r\n]+/).filter(Boolean)[0]}catch(e){}})()'

# ---- Find extension directories ----

if (-not (Test-Path $extensionRoot)) {
    Write-Host "VSCode extensions directory not found: $extensionRoot" -ForegroundColor Red
    exit 1
}

$dirs = Get-ChildItem $extensionRoot -Directory | Where-Object { $_.Name -like 'anthropic.claude-code-*' }

if ($dirs.Count -eq 0) {
    Write-Host "No Claude Code extension found in: $extensionRoot" -ForegroundColor Yellow
    exit 1
}

Write-Host "Found $($dirs.Count) Claude Code extension(s):`n"

foreach ($dir in $dirs) {
    $label = $dir.Name
    $file  = Join-Path $dir.FullName 'extension.js'

    if (-not (Test-Path $file)) {
        Write-Host "[$label] extension.js not found, skipping" -ForegroundColor Yellow
        continue
    }

    $content = [System.IO.File]::ReadAllText($file, [System.Text.Encoding]::UTF8)

    if ($content.IndexOf($badUrl) -lt 0) {
        Write-Host "[$label] Not affected (bad URL not found) - already patched or different version" -ForegroundColor Green
        continue
    }

    # Count occurrences before patching
    $count = ([regex]::Matches($content, [regex]::Escape($badUrl))).Count
    Write-Host "[$label] Found $count occurrence(s) of the bad CI path. Patching..." -ForegroundColor Cyan

    # Backup original
    $backup = "$file.bak"
    Copy-Item $file $backup
    Write-Host "[$label] Backup saved -> extension.js.bak"

    # Apply Fix 1: createRequire
    $patched = [regex]::Replace($content, $pattern1, $replacement1)
    $fix1count = $count - ([regex]::Matches($patched, [regex]::Escape($badUrl))).Count
    Write-Host "[$label] Fix 1 (createRequire): replaced $fix1count occurrence(s)"

    # Apply Fix 2: fileURLToPath wrapper
    $patched2 = [regex]::Replace($patched, $pattern2, $replacement2)
    $fix2count = ([regex]::Matches($patched,  [regex]::Escape($badUrl))).Count `
               - ([regex]::Matches($patched2, [regex]::Escape($badUrl))).Count
    Write-Host "[$label] Fix 2 (path resolver): replaced $fix2count occurrence(s)"

    # Verify no bad URLs remain
    $remaining = ([regex]::Matches($patched2, [regex]::Escape($badUrl))).Count
    if ($remaining -gt 0) {
        Write-Host "[$label] WARNING: $remaining occurrence(s) still remain after patching!" -ForegroundColor Yellow
    }

    # Write patched file
    [System.IO.File]::WriteAllText($file, $patched2, [System.Text.Encoding]::UTF8)
    Write-Host "[$label] Patched successfully" -ForegroundColor Green
    Write-Host ""
}

Write-Host "Done. Reload VSCode to apply: Ctrl+Shift+P -> 'Developer: Reload Window'" -ForegroundColor White

[SlothClient]

I undergraded plugin's version to v2.1.49, it runs, however, sometimes thorw error like this "Error: Claude Code process exited with code 3
View output logs · Troubleshooting resources"