No Persister Error Hibernate

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to any questions you might have Meta Discuss the workings and policies could not compile the mapping document of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads http://stackoverflow.com/questions/17511425/no-persister-for-class-error with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 6.2 million programmers, just like you, helping each other. Join them; it only takes a minute: http://stackoverflow.com/questions/20935411/nhibernate-mappingexception-no-persister-for Sign up NHibernate.MappingException: No persister for up vote 0 down vote favorite I'm begining my adventure with nHibernate and I have a problem. My code: Model/Project.cs namespace entity1.Model { public class Project { public Guid Id { get; set; } public string Name { get; set; } public string Description { get; set; } } } Model/Project.hbm.xml Web.config NHibernate.Driver.SqlClientDriver Server=(local);initial catalog=todo;Integrated Security=True NHibernate.Dialect.MsSql2008Dialect NHibernate.ByteCode.Castle.ProxyFactoryFactory, NHibernate.ByteCode.Castle Test.aspx.cs Project project = new Project(); // [...] Configuration c = new Configuration(); c.AddAssembly(Assembly.GetCallingAssembly()); ISessionFactory factory = c.BuildSessionFactory(); using (IS

Blaine I'm pulling my hair out trying to fix this error. http://www.blainekendall.com/index.php/archives/2004/04/12/hibernate-no-persister-for-error/ I've used the same technique, similar datatypes, similar http://forums.devart.com/viewtopic.php?f=32&t=29844 mapping files…yet, when I try to map my Hibernate "Historical" data object class, I get a "No persister for" error. I've googled for solutions to this problem, but nothing has come up applicable to no persister what I'm looking to fix. So, I'm turning to the blogosphere for help here. In order to debug, I've created a servlet which attempts to write a data object (Historical) to MySQL. I do this twice, with the same code (copy & paste no persister for for this junk debug code). One method (writeDailysumsToDB) writes to a different data object, with similar types. The second method (writeHistoricalToDB) writes the Historical data object. writeDailysumsToDB works perfectly, yet writeHistoricalToDB fails with the mentioned "No persister for" error. This leads me to believe it's a mapping error, yet I can't detect where. So I'm dumping everything here in the hopes someone can browse and point out my obvious error.
----- Exception stacktrace -----

net.sf.hibernate.MappingException: No persister for: db.Historical
at net.sf.hibernate.impl.SessionFactoryImpl.getPersister(SessionFactoryImpl.java:420)
at net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2302)
at net.sf.hibernate.impl.SessionImpl.getPersister(SessionImpl.java:2309)
at net.sf.hibernate.impl.SessionImpl.save(SessionImpl.java:599)
at spike.WriteHistoricalServlet.writeHistoricalToDB(WriteHistoricalServlet.java:192)
at spike.WriteHistoricalServlet.handleRequest(WriteHistoricalServlet.java:126)
at org.apache.velocity.servlet.VelocityServlet.doRequest(VelocityServlet.java:372)
at org.apache.velocity.servlet.VelocityServlet.doGet(VelocityServlet.java:333)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:126)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:103)
at com.caucho.server.http.FilterChainServlet.doFilter(FilterChainServlet.java:96)
at com.caucho.server.http.Invocation.service(Invocation.java:315)
at com.caucho.server.http.CacheInvocation.service(CacheInvocation.java:135)
at com.caucho.server.http.HttpRequest.handleRequest(HttpRequest.java:246)
at com.caucho.server

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