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Fix Git 'index.lock' File Exists Error in SourceTree - Docker Nginx 502 Bad Gateway: Connection Refused Fix-Nginx -t Test Failure: Troubleshooting Checklist

Updated 2026-07-28 13:42:55macos-help
Fix Git 'index.lock' File Exists Error in SourceTree - Docker Nginx 502 Bad Gateway: Connection Refused Fix-Nginx -t Test Failure: Troubleshooting Checklist
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