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Fix 'File Locked by Unknown Process' in Command Prompt - Using Cron for Automated Tasks in Ubuntu-How to Fix Port Already Allocated in VS Code

Updated 2026-06-13 22:09:06developer-tools
Fix 'File Locked by Unknown Process' in Command Prompt - Using Cron for Automated Tasks in Ubuntu-How to Fix Port Already Allocated in VS Code
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.