ZEN 7 installed on a cluster (Desktops, that is)

I get the "cannot connect to master XML server"

TID says to make sure that startinv.ncf has the ZWSSTART.NCF in it.

If I put that in there, I get this error on the logger screen (it
scrolls by infinitely):

ZENworks Server Management>readline java.io.IOException: Wrong kind of

What's up with that?

Knowledgebase shows nothing about this error.