claude-code - 💡(How to fix) Fix [BUG] Claude Code debería funcionar sin AVX [1 comments, 2 participants]

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anthropics/claude-code#51651Fetched 2026-04-22 07:56:33
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Error Message

Error Messages/Logs

Code Example

Bun v1.3.13 (743d2a40) Windows x64 (baseline)
Windows v.win10_cu
Args: 
Features: no_avx2 no_avx 
Elapsed: 7ms | User: 0ms | Sys: 46ms
RSS: 17.05MB | Peak: 17.05MB | Commit: 25.26MB | Faults: 4766

CPU lacks AVX support. Please consider upgrading to a newer CPU.
panic(thread 30100): attempt to use null value
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.3.13/e_1743d2a4AggggggDmps5Go3l/6DCAgrmFCA292fA0
RAW_BUFFERClick to expand / collapse

Preflight Checklist

  • I have searched existing issues and this hasn't been reported yet
  • This is a single bug report (please file separate reports for different bugs)
  • I am using the latest version of Claude Code

What's Wrong?

me aparece lo siguiente al momento de intentar usar claude en vscode:

changed 2 packages in 4s PS C:\Users\eperezf\Desktop\Reporte OSF> claude

Bun v1.3.13 (743d2a40) Windows x64 (baseline) Windows v.win10_cu Args: Features: no_avx2 no_avx Elapsed: 7ms | User: 0ms | Sys: 46ms RSS: 17.05MB | Peak: 17.05MB | Commit: 25.26MB | Faults: 4766

CPU lacks AVX support. Please consider upgrading to a newer CPU. panic(thread 30100): attempt to use null value oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team, please file a GitHub issue using the link below:

https://bun.report/1.3.13/e_1743d2a4AggggggDmps5Go3l/6DCAgrmFCA292fA0

What Should Happen?

deberia poder usar claude en vscode sin AVX

Error Messages/Logs

Bun v1.3.13 (743d2a40) Windows x64 (baseline)
Windows v.win10_cu
Args: 
Features: no_avx2 no_avx 
Elapsed: 7ms | User: 0ms | Sys: 46ms
RSS: 17.05MB | Peak: 17.05MB | Commit: 25.26MB | Faults: 4766

CPU lacks AVX support. Please consider upgrading to a newer CPU.
panic(thread 30100): attempt to use null value
oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team,
please file a GitHub issue using the link below:

 https://bun.report/1.3.13/e_1743d2a4AggggggDmps5Go3l/6DCAgrmFCA292fA0

Steps to Reproduce

node --version npm install -g @anthropic-ai/claude-code

changed 2 packages in 4s claude

Bun v1.3.13 (743d2a40) Windows x64 (baseline) Windows v.win10_cu Args: Features: no_avx2 no_avx Elapsed: 7ms | User: 0ms | Sys: 46ms RSS: 17.05MB | Peak: 17.05MB | Commit: 25.26MB | Faults: 4766

CPU lacks AVX support. Please consider upgrading to a newer CPU. panic(thread 30100): attempt to use null value oh no: Bun has crashed. This indicates a bug in Bun, not your code.

To send a redacted crash report to Bun's team, please file a GitHub issue using the link below:

https://bun.report/1.3.13/e_1743d2a4AggggggDmps5Go3l/6DCAgrmFCA292fA0

Claude Model

None

Is this a regression?

I don't know

Last Working Version

No response

Claude Code Version

4.6,

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

extent analysis

TL;DR

The issue is likely due to the CPU lacking AVX support, causing Bun to crash, and a potential workaround is to use a different version of Bun or Claude Code that does not require AVX support.

Guidance

  • The error message indicates that the CPU lacks AVX support, which is required by Bun v1.3.13, so consider using a different version of Bun that does not require AVX.
  • The issue is reported to be with Bun, not with the user's code, so the solution may involve updating or modifying Bun rather than the Claude Code.
  • The provided steps to reproduce the issue include installing Claude Code globally using npm, which may not be the recommended installation method, so try installing it locally or using a different installation method.
  • The issue report includes a link to send a redacted crash report to Bun's team, which may help the developers identify and fix the issue.

Example

No code snippet is provided as the issue is related to a crash in Bun, which is not directly related to the user's code.

Notes

The reported operating system is macOS, but the error message includes "Windows v.win10_cu", which may indicate a mismatch in the reported environment. The issue may be specific to the combination of Bun, Claude Code, and the underlying operating system.

Recommendation

Apply workaround: The issue is likely due to the CPU lacking AVX support, and since the user is already using the latest version of Claude Code, a workaround such as using a different version of Bun or modifying the installation method may be necessary.

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