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Python Virtual Environment Not Activating on Ubuntu: Fixes - Stop Antivirus from Causing DNS Probe Finished NXDOMAIN-Fix npm ENOENT Package.json Not Found & Permission Denied

Updated 2026-07-28 11:09:47developer-tools
Python Virtual Environment Not Activating on Ubuntu: Fixes - Stop Antivirus from Causing DNS Probe Finished NXDOMAIN-Fix npm ENOENT Package.json Not Found & Permission Denied
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.