claude-code - 💡(How to fix) Fix [Bug] Claude Code intermittently returns gibberish output requiring manual resumption [1 comments, 2 participants]

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/jonatannyqvist/.local/share/claude/versions/2.1.100 (expected in multi-process scenarios)\n at dU_ (/$bunfs/root/src/entrypoints/cli.js:2810:2153)\n at qt6 (/$bunfs/root/src/entrypoints/cli.js:2810:1233)\n at processTicksAndRejections (native:7:39)","timestamp":"2026-04-10T12:40:06.432Z"}]

TL;DR

Investigate the "Lock acquisition failed" error to resolve the issue of claude code returning gibberish.

Guidance

• Check the file system permissions for /Users/jonatannyqvist/.local/share/claude/versions/2.1.100 to ensure the application has proper access.
• Verify if multiple instances of the application are running simultaneously, which could cause the lock acquisition failure.
• Review the error message and code at /$bunfs/root/src/entrypoints/cli.js:2810:2153 to understand the locking mechanism and potential fixes.
• Consider checking for any file system or disk issues that might prevent the application from acquiring the necessary lock.

Notes

The provided error message suggests a locking issue, which might be related to the application's design or the environment it's running in. Further investigation into the application's code and the system's configuration is necessary to determine the root cause.

Recommendation

Apply workaround: Investigate and resolve the locking issue, as it's likely the cause of the problem, and upgrading to a fixed version is not explicitly mentioned as an option.