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Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Resolving Python Dependency Conflicts Between Requirements Files-Git Lock File Error: Causes and Solutions

2026-07-28 14:35:00
Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Resolving Python Dependency Conflicts Between Requirements Files-Git Lock File Error: Causes and Solutions

Result check

  • Keep one change per test run so you know which step helped.
  • Undo temporary changes after the issue is confirmed.

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