Eclipse plugin

I am having some dependency errors when trying to install the plugin. I’ve added to my update sites and am getting the following:

Cannot complete the request.  See the details.
Cannot find a solution satisfying the following requirements Match[requiredCapability: org.eclipse.equinox.p2.iu/org.eclipse.core.commands/[3.3.0.I20070605-0010,3.3.0.I20070605-0010]].

Where can I find this package?

What version of Eclipse you use?
IDE support for liquibase is stark outdated. See other threads, for example
To use the plugin I think (not checked by me) you need a tricky time-matched version of Eclipse, when the plugin was developed Eclipse v 3.3 (Europa). I’m not sure though whether it by Eclipse community well supported.