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NHibernate Mapping Exception Problem

Posted on 2009-07-14
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Last Modified: 2013-12-17
This is my first NHibernate application. I am trying to follow an NHibernate 1.2 HelloWorld application on VS 2008/SQL Server 2005 RTM/NHibernate 2.1.x. I have a console application and have created a database HelloNHibernate with an Employee table having three columns - ID (int), Name (varchar50), Manager (int). I am trying to add a record through NHibernate but am getting a MappingException was unhandled error. The error says "No persister for: HelloWorldNHibernate.Employee". Inner Exception is null. Gogoling the error threw up two possibilities. One, my mapping file (Employee.hbm.xml) does not have Build Action set to Embedded Resource (this I have set). Second, there must be a syntax error in the hbm file. For the life of me, I can't figure out any problems in the mapping file! Any help is appreciated!  
Employee.hbm.xml:

<?xml version="1.0" encoding="utf-8" ?>

<hibernate-mapping xmlns="urn:nhibernate-mapping-2.2" 

	           namespace="HelloWorldNHibernate"

	           assembly="HelloWorldNHibernate">

  <class name="HelloWorldNHibernate.Employee" table="Employee">

        <id name="ID" column="ID">

             <generator class="identity"/>

         </id>

       <property name="Name" column="Name"/>

       <many-to-one access="field" name="Manager" column="Manager" cascade="all"/>

 </class>

</hibernate-mapping>

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Question by:anand_007
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by:anand_007
ID: 24858120
Ok .. I got the solution! I was using <many-to-one access="field" ...> This was causing a problem. I dropped the access attribute and let it default to property. It now works like a charm :)
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anand_007 earned 0 total points
ID: 24867236
Anyone interested can view the discussion and resoluton here ... https://forum.hibernate.org/viewtopic.php?f=25&t=998315
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