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Fix Nginx Upstream Connection Refused Timeout Error - How to Resolve Docker Compose Port Already in Use-Resolve 'Permission Denied' for All Files in VS Code

Updated 2026-07-28 11:05:33office-tools

Fix Nginx Upstream Connection Refused Timeout Error - How to Resolve Docker Compose Port Already in Use-Resolve 'Permission Denied' for All Files 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.