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Fix npm run build Failed with PostCSS Error - Python Virtual Environment Not Activating in Git Bash: Fixes-Fix Nginx 502 Bad Gateway on Docker Ubuntu

Updated 2026-07-28 13:38:48macos-help
Fix npm run build Failed with PostCSS Error - Python Virtual Environment Not Activating in Git Bash: Fixes-Fix Nginx 502 Bad Gateway on Docker Ubuntu
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.