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Fix Git 'index.lock file exists' Error - How to Resolve Nginx 502 Bad Gateway on Docker-Docker Prune Not Freeing Enough Space: Practical Fixes

2026-07-28 16:00:09macos-help
Fix Git 'index.lock file exists' Error - How to Resolve Nginx 502 Bad Gateway on Docker-Docker Prune Not Freeing Enough Space: Practical Fixes

Final checklist

  • Confirm that the same symptom is gone after a restart or refresh.
  • Keep the smallest working change and undo temporary diagnostic settings.

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