Hello Prefect Community, I've done an upgrade to my prefect server and when I am trying to start the server I am having an alembic issue. Prefect is installed over linux and the db is in a docker postgres. I've installed the latest version of prefect 2.10.21. the issue when i start the server:

alembic.util.exc.CommandError: Multiple head revisions are present for given argument 'head'; please specify a specific target revision, '<branchname>@head' to narrow to a specific head, or 'heads' for all heads

Hi Inigo, This looks like an alembic issue. What version did you upgrade from?

from 2.8.3

Gotcha. Is that the full stack trace of the error?

no, that's the last part of the error...

Would you mind sharing the rest? Curious to see if there's any other info that may help with troubleshooting.

in fact I'm not able to retreive it because I have restarted all... as I could not wait.. It wasn't so hard to restart all as I have for every object (deployment, secret, string) in python scripts

When you say you've restarted, is it that you've done a fresh instillation and setup a new db?

yes, I've recreated the postgres volume and docker

Interesting! Thanks for sharing the details here. It'll be helpful in case someone else runs into a similar issue.

yes, in fact after that I think that could have solved the problem.