Liquibase error in studio when trying to generate changelog

When trying to generate files for cuba migration

It scans a bunch of files and then gives a popup with following error.

liquibase.command.CommandExecutionException: java.lang.RuntimeException: java.lang.RuntimeException: java.lang.NullPointerException: Cannot invoke “liquibase.diff.DiffResult.getComparisonSnapshot()” because " " is null

Hi

Thanks for your feedback.
This error seems to be fixed in the following issue: https://youtrack.haulmont.com/issue/JST-3601. But the fix is not included into any stable release yet.
You can install latest build from the nightly channel and check if it works for you. Nightly build installation process described here: Installation :: Jmix Documentation