<?xml version="1.0" encoding="utf-8" ?>
<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2">
   <class name="lgTronic.Spada.Business.Entities.ClassComment,lgTronic.Spada.Business.Entities" table="Comments">
      <id name="Id" column="id" type="int" unsaved-value="0" >
         <generator  class="identity"></generator>
      </id>
      <property name="CommentStyle" length="50" not-null="true"></property>
      <property name="Comment"></property>
      <property name="CreatedDate" not-null="true"></property>
      <property name="ModifiedDate" not-null="true"></property>
      <property name="CreatedBy" length="50" not-null="true"></property>
      <property name="ModifiedBy" length="50" not-null="true"></property>
      <version name ="verson"></version>
   </class>
</hibernate-mapping>

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The element 'class' in namespace 'urn:nhibernate-mapping-2.2' has invalid child element 'version' in namespace 'urn:nhibernate-mapping-2.2'. List of possible elements expecte.............