I am new to NHibernate so please be patient with me. I keep getting the following error when I try to do and addAssembly to a configuration.:

The element 'class' in namespace 'urn:nhibernate-mapping-2.0' has invalid child element 'property' in namespace 'urn:nhibernate-mapping-2.0'. List of possible elements expected: 'urn:nhibernate-mapping-2.0:meta urn:nhibernate-mapping-2.0:jcs-cache urn:nhibernate-mapping-2.0:cache urn:nhibernate-mapping-2.0:id urn:nhibernate-mapping-2.0:composite-id'.

The hbx file looks like this:

<?xml version="1.0" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.0" namespace="CommonAuditingDAL" assembly="CommonAuditingDAL">
<class name="ApplicationSpecificField_Table" table="APPLICATION_SPECIFIC_FIELD_DEF">
<id name="AppSpecificFieldID" column="app_specific_field_id">
<generator class="genid"/>
</id>
<property name="SourceApplication" column="source_application"/>
<property name="FieldNumber" column="field_number"/>
<property name="FieldName" column="field_name"/>
<property name="FieldDescription" column="field_description"/>
<property name="LastUpdateUser" column="last_update_user" />
<property name="LastUpdateDate" column="last_update_date" />
</class>
</hibernate-mapping>

Any ideas or suggestions?

to me the error sounds like is trying to load other mapping which does not have the id element following the class tag. What other mappings do you have in that assembly?

cheers,
Radu

Radu, you nailed it. That was exactly what was going on.

Just out of curiosity, do you use a tool to generate the hbx files? I've built the ones I'm using by hand just to see what is in them, but this would very quickly become tedious and error prone work.

Thanks again.

Just curious, what is the "genid" generator class?

I'm building the mapping files by hand. I didn't find any reliable tool that I can use with NHibernate. It can be tedious, yes, but I have total control, doing mistakes, but learning a lot. One can't say it masters (N)Hibernate without a very good understanding of the mapping process.

cheers,
Radu