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claude-code - 💡(How to fix) Fix [BUG] Extension fails to activate on Windows - hardcoded Linux path in bundle

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Error Message

The extension fails to activate with this error in the Developer Console: 4. Check the Console tab — extension activation error appears immediately

Error Messages/Logs

Code Example

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/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'

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mainThreadExtensionService.ts:108 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/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'.
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What's Wrong?

Version: 2.1.136 (win32-x64) OS: Windows 11

The extension fails to activate with this error in the Developer Console:

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/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'

The bundle contains a hardcoded Linux CI path that doesn't resolve on Windows. The extension shows no commands and doesn't appear in the Output channels.

What Should Happen?

The extension should activate normally on Windows and register all its commands (e.g. claude-vscode.editor.openLast).

Steps to Reproduce

  1. Install VS Code on Windows 11
  2. Install extension anthropic.claude-code version 2.1.136
  3. Open Developer Tools (Ctrl+Shift+P → "Developer: Toggle Developer Tools")
  4. Check the Console tab — extension activation error appears immediately

Error Messages/Logs

mainThreadExtensionService.ts:108 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/claude-cli-internal/claude-cli-internal/build-agent-sdk/sdk.mjs'.

Environment

  • Claude Code CLI: 2.1.136
  • Platform: VS Code extension (win32-x64)
  • OS: Windows 11 Pro
  • Shell: PowerShell / Git Bash

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claude-code - 💡(How to fix) Fix [BUG] Extension fails to activate on Windows - hardcoded Linux path in bundle