I am very new to NHibernate/C#.. I have worked with Hibernate (java) before so I am thinking they work the same way....
However I am getting the NHibernate.PropertyAccessException that has some other additional Information that says "The type 'NHibernate.Collection.Set can not be assigned to a property of type System.Collection.IList'

So I have two Objects... Customers and Orders( right out of the NorthWind database)... I customer can have 1-* orders and the HBM files says that.

This error occurs when I query to get all the Customers and there realted Orders.... And I think that the error occurs when the framework tries to Create the Order Objects...

Also does anyone know how to enable the printStackTrace() (I dont know exactly what it is called in C# but in java its called printStackTrace()).... I was able to get the stack Trace with the older version of NHibernate but it has stopped appearing with the RC2 that I am using now...

My Envoirnment is
NHibernate version 1.0 RC2 (the latest)
.Net Framework 1.1

Anyone have any ideas what might be going on?

if you declared your list as System.Collection.IList you should map it as a bag not as a set. If you still need to use the set, the Nhibernate docs state that your collection (set in fact) is to be of type Iesi.Collections.ISet.

It is unavoidable, read the docs! Collection mapping is in Chapter 5.

Regards,
Radu