claude-code - 💡(How to fix) Fix [Bug] Significant performance degradation in recent builds [1 comments, 2 participants]

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/nickthorne/.local/share/claude/versions/2.1.121 (expected in multi-process scenarios)\n at p66 (/$bunfs/root/src/entrypoints/cli.js:2769:2177)\n at YY8 (/$bunfs/root/src/entrypoints/cli.js:2769:1257)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-28T07:27:29.029Z"}]

TL;DR

The issue might be related to a lock acquisition failure, and checking the file system permissions or lock mechanisms could help resolve the slow performance.

Guidance

• Investigate the file system permissions for the directory /Users/nickthorne/.local/share/claude/versions/2.1.121 to ensure the application has the necessary access rights.
• Check for any other processes that might be holding a lock on the same directory, causing the acquisition failure.
• Consider clearing any existing locks or temporary files in the directory to see if it improves performance.
• Review the application's documentation or configuration to see if there are any settings related to lock acquisition or concurrency that can be adjusted.

Example

No code snippet is provided as it's not clearly supported by the issue.

Notes

The issue might be specific to the version 2.1.121 or the darwin platform, and further investigation is needed to determine the root cause.

Recommendation

Apply workaround: Checking file system permissions and lock mechanisms might help resolve the issue, and if not, considering moving to a different platform like Codex might be necessary.