I have a class that is based on a single parent class but when I got to instantiate the subclass VFP 6 throws an error: "Class definition ACEAPIABSTRACT is not found.

parent class is defined as: DEFINE CLASS aceAPIAbstract as Custom and lives in rpds_ace_abstract.prg

subclass is defined as DEFINE CLASS rpdsACEapi As aceAPIAbstract and lives in RPDS_ACE_api.prg

I'm creating the object with the following syntax:

loACEAPI = NEWOBJECT( 'rpdsACEapi', 'rpds_ace_api.fxp', '', parm1, parm2, parm3, parm4, parm5 )

Any ideas how I can trouble shoot this?