I added letsencrypt as you suggested.
I now see: Package: _/ca-certificates-letsencrypt ca-certificates-letsencrypt.sh exit code 1 Package: _/Unknown package ca-certificates.sh exit code 1 -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple