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Fix Node Version Incompatibility When Installing Packages - How to Resolve Git Detached HEAD-Fix Nginx 502 Bad Gateway: Upstream Connection Refused

Updated 2026-07-28 14:55:13developer-tools
Fix Node Version Incompatibility When Installing Packages - How to Resolve Git Detached HEAD-Fix Nginx 502 Bad Gateway: Upstream Connection Refused
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.