[BUG] - I can't use claude code anyway on my VSCode extension or CLI

Resolved 💬 4 comments Opened Apr 8, 2026 by carlosGuimaraes-dev Closed May 21, 2026

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?

uname -m output: x86_64
the exact error: zsh: illegal hardware instruction claude --version
your macOS version and whether you’re on Intel or Apple Silicon (even though x86_64 usually means Intel)

Hardware Overview:

Model Name: MacBook Pro
Model Identifier: MacBookPro10,1
Processor Name: Quad-Core Intel Core i7
Processor Speed: 2.4 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB
System Firmware Version: 429.0.0.0.0
OS Loader Version: 540.120.3~37

What Should Happen?

Claude should be working

Error Messages/Logs

carlosguimaraes@Carloss-MacBook-Pro-2 zerolag % claude --version
zsh: illegal hardware instruction claude --version
carlosguimaraes@Carloss-MacBook-Pro-2 zerolag % claude -v
zsh: illegal hardware instruction claude -v
carlosguimaraes@Carloss-MacBook-Pro-2 zerolag %


Carloss-MacBook-Pro-2:zerolag carlosguimaraes$ curl -fsSL https://claude.ai/install.sh | bash
Setting up Claude Code...
bash: line 151: 23788 Illegal instruction: 4     "$binary_path" install ${TARGET:+"$TARGET"}

Steps to Reproduce

claude doesn't open anyway

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

_No response_

Claude Code Version

none

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

_No response_

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