Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Fix 'package.json Not Found' After Cloning a Repository-How to Handle UnicodeDecodeError in Logging

Updated 2026-07-28 18:51:39developer-tools
Fix Nginx 502 Bad Gateway: Upstream Connection Refused - Fix 'package.json Not Found' After Cloning a Repository-How to Handle UnicodeDecodeError in Logging
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.