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claude-code - 💡(How to fix) Fix [BUG] Claude Desktop crashes within 20s of launch on macOS — even after clean reinstall

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Error Message

Error Messages/Logs

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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?

Environment:

  • macOS version: [run sw_vers -productVersion and paste]
  • Hardware: [Apple menu → About This Mac → copy chip name]
  • App version: latest as of May 12, 2026

Steps to reproduce:

  • Fresh install of Claude Desktop
  • All plugins disabled in ~/.claude/settings.json
  • ClaudeCodeEnabled set to false via defaults write
  • Launch app → closes within 20 seconds, every time

Diagnostics already performed:

  • Killed all background daemons (claude-mem, chroma-mcp)
  • Deleted all app data and caches
  • Reinstalled from claude.ai/download
  • Disabled Code feature via defaults write
  • Restarted Mac
  • Still crashes consistently in 20s

Logs attached: main.log shows download of 2.1GB sandbox stalls/fails, app exits silently after.

macos version- 26.3.1

What Should Happen?

the desktop app should open and dont crash, when i want to work on anything it should not crash

Error Messages/Logs

Steps to Reproduce

issue is happening in my system when I try to start claude desktop app on mac

Claude Model

None

Is this a regression?

No, this never worked

Last Working Version

No response

Claude Code Version

2.1.139 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

No response

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