Hello,
SAS Enterprise Miner Workstation is a standalone variety of SAS Enterprise Miner that is designed to work locally on the machine where it is installed via a basic installation. You are correct- you do not connect to any server(s) when you use this variety to create mining projects. They are all processed and stored locally.
Here is a SAS note that documents common error messages encountered during project creation. I think it does document the one you are seeing as well:
Problem Note 58799: Diagnosing and resolving SAS® Enterprise Miner(tm) project creation errors
http://support.sas.com/kb/58/799.html
I would review this SAS note.
Thanks,
Bishal