Cannot deploy bundle due to series not being available

I have a reactive charm that I have not built in a while, and I’m trying to build it. After building, I can’t deploy it because it says the charm is not available for bionic.

The charm’s metadata includes bionic.

This worked the last time I built the charm.

I must be overlooking something very basic. Any suggestions for what to look for?

I did a snap refresh to get juju to the 2.9/stable channel and the problem went away. I was on 3.0.

Xenial and Bionic support not available for Juju 3 and moving forward. Juju 2.9 will be kept as an LTS for a long time with security updates moving forward.