Thanks for checking!
Interestingly I have this same setup, and works great locally. Only seems to have the problem when I am trying to deploy it.
Building mix release and starting on render.
When I build a release locally that seems to work more or less.
EDIT:
I found the problem!
In our build script we have migration running as the last step:
_build/$MIX_ENV/rel/xxx/bin/xxx eval "xxx.Release.migrate"
When it wants to run this step we get that error I sent earlier, even locally.
We have this setup: How to migrate Mix Release projects · The Phoenix Files
Anything with eval post build does not seem to work.
