You'll need to make sure to check SDO from the callisto update site (or have it installed already).. do you already have it installed?
I see on the Callisto Discovery Site this:
EMF Service Data Objects (SDO) 2.2.0.v.....
When I select that, it requires that I also select and install:
Eclipse Modeling Framework (EMF) 2.2.1.v....
Now I can select all the JBoss IDE components. Its installing now.
why is it it needed to go to callisto discovery site seperately ?