[BUG] Claude Code stopped working after update

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?

Problem: Claude Desktop's Code tab crashes immediately with "Claude Code process exited with code 1" (0 seconds, no response).

Root Cause: The Claude Desktop Electron app (v1.1617.0) has a compatibility issue when directly spawning the bundled Bun-compiled Claude Code binary (v2.1.92). When Electron's
child_process.spawn() launches the Bun binary directly, the process crashes immediately due to inherited file descriptor/signal handling incompatibilities between the Electron
(Node.js) parent process and the Bun runtime.

Contributing factor: The desktop app also sets ANTHROPIC_API_KEY= (empty string) alongside a valid OAuth token (CLAUDE_CODE_OAUTH_TOKEN). The binary may interpret the empty API key as
a set-but-invalid credential and fail before falling back to OAuth.

What Should Happen?

Fix applied: Replaced the binary at ~/Library/Application Support/Claude/claude-code/2.1.92/claude.app/Contents/MacOS/claude with a thin shell wrapper script that calls the original
binary (claude.real). The shell intermediary properly buffers the process environment between Electron and the Bun binary.

Other things cleared during debugging (may need to re-download on next launch):

• IndexedDB database (had stale LOCK file)
• VM bundles (~2GB, re-downloads automatically for Cowork mode)
• Code session cache

Note: This fix may need to be re-applied if the desktop app auto-updates the Claude Code binary, as it would overwrite the wrapper.

This is the summary provided by Claude CLI after fixing the issue. I don’t want to spend my tokens on further fixes for the app.

Error Messages/Logs

2026-04-10 15:02:28 [info] [CCD] Status: ready (version: 2.1.92)
  2026-04-10 15:02:30 [info] [CCD] LocalSessions.getDefaultPermissionMode: cwd=/Users/abhisheksinha/Documents/CESS                                                                        
  2026-04-10 15:02:30 [info] LocalSessions.checkGhAvailable: cwd=/Users/abhisheksinha/Documents/CESS                                                                                      
  2026-04-10 15:02:37 [info] LocalSessions.checkTrust: cwd=/Users/abhisheksinha/Documents/CESS                                                                                            
  2026-04-10 15:02:38 [info] Starting local session local_521e7a88-c0e4-43e3-8564-6e04773d0483 in /Users/abhisheksinha/Documents/CESS                                                     
  2026-04-10 15:02:38 [info] [CCD] Passing 1 plugin(s) to SDK (skills: 1, remote: 0, local: 0)                                                                                            
  2026-04-10 15:02:38 [info] Using Claude Code binary at: /Users/abhisheksinha/Library/Application Support/Claude/claude-code/2.1.92/claude.app/Contents/MacOS/claude                     
  2026-04-10 15:02:38 [error] Session local_521e7a88-c0e4-43e3-8564-6e04773d0483 query error: Claude Code process exited with code 1                                                      
  2026-04-10 15:02:38 [info] [CCD CycleHealth] unhealthy cycle for local_521e7a88-c0e4-43e3-8564-6e04773d0483 (0s, hadFirstResponse=false, reason=no_response)                            
                                                                                                                                                                                          
  And the Electron stderr from launching via terminal:                                                                                                                                    
                                                                                                                                                                                          
  [ERROR:storage/browser/quota/quota_database.cc:1013] Could not open the quota database, resetting.                                                                                      
  [ERROR:content/browser/indexed_db/instance/leveldb/backing_store.cc:251] Failed to open LevelDB database from /Users/abhisheksinha/Library/Application                                  
  Support/Claude/IndexedDB/https_claude.ai_0.indexeddb.leveldb, IO error: .../LOCK: No further details. (ChromeMethodBFE: 15::LockFile::1)                                                
                                                                                                                                                                                          
  And the captured process invocation that revealed the issue (from the wrapper debug log):                                                                                               
                  
  ARGS: --output-format stream-json --verbose --input-format stream-json                                                                                                                  
        --effort medium --model claude-sonnet-4-6 --permission-prompt-tool stdio                                                                                                          
        --allowedTools mcp__computer-use,mcp__ccd_session__spawn_task                                                                                                                     
        --setting-sources=user,project,local --permission-mode acceptEdits                                                                                                                
        --allow-dangerously-skip-permissions --include-partial-messages                                                                                                                   
        --plugin-dir .../skills-plugin/...                                                                                                                                                
                                                                                                                                                                                          
  ENV (relevant):                                                                                                                                                                         
    ANTHROPIC_API_KEY=              <-- empty string, potential conflict                                                                                                                  
    ANTHROPIC_BASE_URL=https://api.anthropic.com                                                                                                                                          
    CLAUDE_CODE_ENTRYPOINT=claude-desktop                                                                                                                                                 
    CLAUDE_CODE_EXECPATH=/Users/abhisheksinha/.local/share/claude/versions/2.1.100  <-- version mismatch (binary is 2.1.92)                                                               
    CLAUDE_CODE_OAUTH_TOKEN=sk-ant-oat01-...  <-- valid token                                                                                                                             
    CLAUDE_CODE_PROVIDER_MANAGED_BY_HOST=1                                                                                                                                                
                                                                                                                                                                                          
  Key points for the report:                                                                                                                                                              
  - Binary v2.1.92 crashes instantly (exit code 1, 0 seconds) when spawned directly by Electron                                                                                           
  - Same binary works fine from CLI                                                                                                                                                       
  - Wrapping it in a shell script fixes it — the shell intermediary between Electron and the Bun binary resolves the spawn issue
  - CLAUDE_CODE_EXECPATH points to v2.1.100 while running v2.1.92                                                                                                                         
  - ANTHROPIC_API_KEY is set to empty string alongside a valid OAuth token

Steps to Reproduce

Claude-logs-2026-04-10T09-53-52-824Z.zip

Claude Model

Sonnet (default)

Is this a regression?

Yes, this worked in a previous version

Last Working Version

_No response_

Claude Code Version

2.1.100

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Terminal.app (macOS)

Additional Information

My Claude Desktop version is:
Claude 1.1617.0 (8d6345) 2026-04-09T16:10:15.000Z