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Fix Git 'index.lock file exists' Error - Fix Error 0x800f081f in Windows 11: Step-by-Step Guide-How to Fix npm Package Json Not Found Error

Updated 2026-07-28 09:48:52office-tools
Fix Git 'index.lock file exists' Error - Fix Error 0x800f081f in Windows 11: Step-by-Step Guide-How to Fix npm Package Json Not Found Error
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.