I keep getting this error about a missing class with no name when I compile I and can't figure out why.

The classes are all added in the start program so it doesn't make sense.
SET CLASSLIB TO PDM-CLASS.VCX ADDITIVE
SET CLASSLIB TO PDMCTRLS.VCX ADDITIVE

SET PROCEDURE TO FuncQPDM.prg, FuncDB.prg, FuncGlob.prg, FuncLog.prg, ;
FuncMOD.prg, ClssQPDM.prg, Registry.prg, ;
copyrowcol.prg,funcprint.prg,csfunct_lib.prg, ;
start.prg


Any ideas what it could be?

Program c:\questpdm.dev\questpdm\kernel\prg\clssqpdm.prg has the following errors:
Visual Class Library - Undefined