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Fix 'Permission Denied' When Activating Python venv - Docker Compose Environment Variable Not Set in Dockerfile-How to Clear DNS Cache to Fix ERR_NAME_NOT_RESOLVED

Updated 2026-07-28 15:12:07browser-issues
Fix 'Permission Denied' When Activating Python venv - Docker Compose Environment Variable Not Set in Dockerfile-How to Clear DNS Cache to Fix ERR_NAME_NOT_RESOLVED
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.