claude-code - 💡(How to fix) Fix [Bug] Rate limiting prevents concurrent project work despite increased credits [1 comments, 2 participants]

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/punnerud/.local/share/claude/versions/2.1.123 (expected in multi-process scenarios)\n at x86 (/$bunfs/root/src/entrypoints/cli.js:2769:2177)\n at Jw8 (/$bunfs/root/src/entrypoints/cli.js:2769:1257)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T07:32:56.757Z"},{"error":"Error: 429 {"type":"error","error":{"type":"rate_limit_error","message":"Rate limited"},"request_id":"req_011CaZbX7ny2kuixVoTtDxzu"}\n at generate (/$bunfs/root/src/entrypoints/cli.js:11:57915)\n at makeRequest (/$bunfs/root/src/entrypoints/cli.js:50:4943)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-30T07:54:48.832Z"}]

TL;DR

The rate limit error may be caused by the Ultrareview process being interrupted due to a lock acquisition failure, and a potential workaround is to retry the process or check the lock file.

Guidance

• The error message indicates a "Lock acquisition failed" error, which may be related to the multi-process scenario, and checking the lock file at /Users/punnerud/.local/share/claude/versions/2.1.123 might provide more information.
• The rate limit error (429) suggests that the API is being called too frequently, and implementing a retry mechanism with a delay between requests might help mitigate this issue.
• Checking the claude documentation for guidance on handling rate limits and lock acquisition failures may provide a more permanent solution.
• Verifying the system's time and timezone settings to ensure they are correctly configured for the European time zone, as the issue seems to be time-dependent.

Example

No code example is provided as it is not clearly supported by the issue.

Notes

The provided information does not specify the exact cause of the lock acquisition failure or the rate limit error, so the suggested workaround is based on the error messages and may not be the definitive solution.

Recommendation

Apply workaround: Implement a retry mechanism with a delay between requests to mitigate the rate limit error, and investigate the lock acquisition failure to prevent future occurrences.