An association from the table X refers to an unmapped class, but class is mapped

[Konstantin Tkachenko]

I have issues mapping a class hierarchy:

namespace Tasks{
public class CapacityRequirement : DomainBase

    {

        public virtual Guid Id { get; set; }

...

        public virtual Resslist Resource { get; set; }
    }

public class PartRequirement: DomainBase

    {

        public virtual Guid Id { get; set; }

                public virtual Matart Part { get; set; }

        public virtual Mapark Machine { get; set; }

...
    }

public class WorkPackage : DomainBase

    {

        public virtual Guid Id { get; set; }

        public virtual IList<CapacityRequirement> CapacityRequirements { get; set; } = new List<CapacityRequirement>();

        public virtual IList<PartRequirement> Parts { get; set; } = new List<PartRequirement>();

...
    }

}

The Classes Resslist, Matart and Mapark are already mapped.

I'm trying to make two indexed lists in uni-directional one-to-many.

For some reason I'm getting An association from the table fst_Part_Requirements refers to an unmapped class:

Mapark

but class is mapped.

What does work:

 * Removing mapping for second collection (PartRequirements) from WorkPackage-Mapping.

 * Removing all many-to-ones from PartRequirement and CapacityRequirement. (If I only remove all many-to-ones from PartRequirement, then the CapacityRequirement class wont compile).

It looks for me as a bug...

Did someone had such an issue?

Should I start debugging NHibernate?

Best regards,

Konstantin