Error was generated because I moved _base from home()\ffc and tried to use it from the new location.

To not to be directory dependent and locate missing classes when directory changes (new hard disk, new vfp, new machine etc.) I tried first to move _base (and all FFCs) to another location (C:\VfpVcx or similiar to use it always) then subclass all _base classes but it didn't work. So I only subclassed home()\ffc\_base to the C:\VfpVcx\_xbase

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