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Nginx Upstream Connection Refused: Diagnosis and Fixes - How to Fix 'Refusing to Merge Unrelated Histories' in Git-npm run build Fails After Git Pull: Fixes

Updated 2026-07-29 01:28:13macos-help
Nginx Upstream Connection Refused: Diagnosis and Fixes - How to Fix 'Refusing to Merge Unrelated Histories' in Git-npm run build Fails After Git Pull: Fixes
Before changing system settings, save your work and note the exact error text so you can compare results after each step.

Extra verification checklist

  • Restart the affected app after changing permissions or configuration files.
  • Test the same workflow in a clean browser profile or a temporary user account.
  • Compare the result on another network if the error may be connection related.

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