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How to Fix Git Push Rejected Non-Fast-Forward Error - Fix Git 'index.lock' File Exists Error on Linux-How to Use IPConfig Release and Renew on Windows 11

Updated 2026-07-28 14:34:41cloud-software
How to Fix Git Push Rejected Non-Fast-Forward Error - Fix Git 'index.lock' File Exists Error on Linux-How to Use IPConfig Release and Renew on Windows 11
Likely symptom
Likely cause
Safe rollback

Verification route

  • Repeat the original action, not only a simplified test case.
  • Restart the app or reload the service after configuration changes.