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Fixing Node Version Mismatch When Running Create React App - Troubleshooting Windows Defender Error 0x8007042c-Nginx 502 Bad Gateway Error: Step-by-Step Troubleshooting

Updated 2026-06-13 12:45:51macos-help
Fixing Node Version Mismatch When Running Create React App - Troubleshooting Windows Defender Error 0x8007042c-Nginx 502 Bad Gateway Error: Step-by-Step Troubleshooting
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.