nHibernate, No row with the given identifier exists

Question

I have a mapping along the lines of this.

Answer 1

Try that...

public void Override(ModelMapper modelMapper) {
    modelMapper.Class(c => { 
        c.ManyToOne(m => m.FKObj, r => {
            r.Column("FKColumn");
            r.NotFound(NotFoundMode.Ignore); // THIS IS IMPORTANT!!!
        });
    });
}