[BUG] Can't run Claude - Illegal instruction (core dumped) after after to anything after 2.1.112
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?
When I try to update local version to anything after 2.1.112 I am unable to launch claude and getting error “Illegal instruction (core dumped)”. Have to keep downgrading to 112.
Here is CPU info:
! lscpu | head -15
⎿ Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Address sizes: 36 bits physical, 48 bits virtual
Byte Order: Little Endian
CPU(s): 2
On-line CPU(s) list: 0,1
Vendor ID: GenuineIntel
Model name: Intel(R) Core(TM)2 Duo CPU E7600 @ 3.06GHz
CPU family: 6
Model: 23
Thread(s) per core: 1
Core(s) per socket: 2
Socket(s): 1
Stepping: 10
CPU max MHz: 3059.0000
What Should Happen?
Claude should launch normally.
Error Messages/Logs
“Illegal instruction (core dumped)”.
Steps to Reproduce
- Claude Update
Claude Model
Opus
Is this a regression?
Yes, this worked in a previous version
Last Working Version
2.1.112
Claude Code Version
2.1.119
Platform
Anthropic API
Operating System
macOS
Terminal/Shell
iTerm2
Additional Information
_No response_
This issue has 2 comments on GitHub. Read the full discussion on GitHub ↗