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Fix Git 'index.lock file exists' Error - nginx unexpected end of file error fix-Resolve Cloudflare 521 Error on Apache

Updated 2026-07-28 16:30:29office-tools

Fix Git 'index.lock file exists' Error - nginx unexpected end of file error fix-Resolve Cloudflare 521 Error on Apache

Prepare

Execute

Validate

Document

Operational follow-up

Record the exact option, command, or setting that changed the result.
Keep a rollback note if the workflow affects shared files or team settings.

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