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Fix Nginx 502 Bad Gateway: Upstream Connection Refused - node-sass build failed: Python not found troubleshooting-Using Virtual Environments to Fix Pip's Externally Managed Error

Updated 2026-07-28 12:52:22developer-tools
Fix Nginx 502 Bad Gateway: Upstream Connection Refused - node-sass build failed: Python not found troubleshooting-Using Virtual Environments to Fix Pip's Externally Managed 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.