Hi, I have a simple class:

namespace TestHibernate
{
public class TestClass
{
private int i;
private int a;

public int A
{
get { return a; }
set { a = value; }
}

public int I
{
get { return i; }
set { i = value; }
}
}
}

and I`m getting an exception while trying to create SessionFactory:
The following types may not be used as proxies:
TestHibernate.TestClass: method set_I should be virtual
TestHibernate.TestClass: method set_A should be virtual
TestHibernate.TestClass: method get_I should be virtual
TestHibernate.TestClass: method get_A should be virtual

Do you have any idea what may be wrong?

Thank you very much in advance for any help

You have to declare the properties virtual (or make the class lazy=false in mapping file). So have public virtual int A for example.