Fix 'npm run build Error Cannot Find Module' - Setup.py Dependency Conflict Troubleshooting-Checklist for Resolving Nginx 403 Forbidden

Updated 2026-07-28 13:03:37developer-tools
Fix 'npm run build Error Cannot Find Module' - Setup.py Dependency Conflict Troubleshooting-Checklist for Resolving Nginx 403 Forbidden
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.