[BUG] claude code hangs upon startup

Resolved 💬 3 comments Opened May 13, 2025 by shandyba Closed May 14, 2025

Environment

  • Platform (select one):
  • [x] Anthropic API
  • [ ] AWS Bedrock
  • [ ] Google Vertex AI
  • [ ] Other: <!-- specify -->
  • Claude CLI version: 0.2.108. 0.2.109
  • Operating System: macOS 15.3.2
  • Terminal: iTerm2 (zsh), Terminal App (zsh)

Bug Description

Claude code hangs upon startup, does not output anything and can be killed only with kill -9 (does not react to any key presses)

Steps to Reproduce

  1. Update claude code to version > 0.2.107 (e.g. to 0.2.108 or 0.2.109 --- the most recent version currently)
  2. Run it: claude

Expected Behavior

Claude code works "as usual"

Actual Behavior

Nothing happens or printed to console, claude code gets completely stuck, fully hanging until killed with kill -9

Additional Context

I tried to cleanup .claude.json, also tried to remove all mcp config --- that doesn't help. Initial "wizard" does work, but as long as wizard is finished --- claude code hangs.
Reverting back to version 0.2.107 makes it work again.

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