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Fix 'Port Already Allocated' Error in VS Code - How to Fix Go Proxy Host Lookup Failure-Resolve Permission Denied Error in CMD

Updated 2026-06-14 00:25:57developer-tools
Fix 'Port Already Allocated' Error in VS Code - How to Fix Go Proxy Host Lookup Failure-Resolve Permission Denied Error in CMD
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.