ah, yeah that is a bug it'll be fixed next version
for now, you can fix it by copying the bdg.class from the client jar into the server jar
I did the quick fix for now and it produced a different error:
This one appeared related to the previous one, and so I added the file it asks for as well (ats.class) to the internal of my server jar, and encountered a further problem:
This one doesn't appear to be one I could fix, so I thought I would report them both to you. Thanks for your help, and best of luck on fixing it 
