I recently converted my solution to VS2010 and .NET 4 and am getting a weird error

I recently upgraded my project to the RC of VS2010 and .net 4. I also added a few additional fields to my 'User' model to include a password, salt, securityquestion, and securityanswer fields all of which are strings. I've switched from getting the source to running the RTM version as well, and I've seen odd behavior of getting a popup when I run the project asking me to open a FluentConfiguration.cs file

I've attached my mapping configuration file, the mapping overrides, and my model

Any assistance is greatly appreciated.

When I try and run my unit tests which worked previously I get the following error:
`Initialization method UniversityExchange.DataTests.MappingTests.BookMappingTest.BaseInitialize threw exception. FluentNHibernate.Cfg.FluentConfigurationException: FluentNHibernate.Cfg.FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

---> FluentNHibernate.Cfg.FluentConfigurationException: An invalid or incomplete configuration was used while creating a SessionFactory. Check PotentialReasons collection, and InnerException for more detail.

---> NHibernate.MappingException: (XmlDocument)(2,4): XML validation error: The element 'class' in namespace 'urn:nhibernate-mapping-2.2' has incomplete content. List of possible elements expected: 'meta, subselect, cache, synchronize, comment, tuplizer, id, composite-id' in namespace 'urn:nhibernate-mapping-2.2'. ---> System.Xml.Schema.XmlSchemaValidationException: The element 'class' in namespace 'urn:nhibernate-mapping-2.2' has incomplete content. List of possible elements expected: 'meta, subselect, cache, synchronize, comment, tuplizer, id, composite-id' in namespace 'urn:nhibernate-mapping-2.2'.. `

Here's the Stack trace:
NHibernate.Cfg.Configuration.LogAndThrow(Exception exception) NHibernate.Cfg.Configuration.ValidationHandler(Object o, ValidationEventArgs args) System.Xml.Schema.XmlSchemaValidator.SendValidationEvent(ValidationEventHandler eventHandler, Object sender, XmlSchemaValidationException e, XmlSeverityType severity) System.Xml.Schema.XmlSchemaValidator.CompleteValidationError(ValidationState context, ValidationEventHandler eventHandler, Object sender, String sourceUri, Int32 lineNo, Int32 linePos, XmlSchemaSet schemaSet) System.Xml.Schema.XmlSchemaValidator.InternalValidateEndElement(XmlSchemaInfo schemaInfo, Object typedValue) System.Xml.XsdValidatingReader.ProcessEndElementEvent() System.Xml.XsdValidatingReader.ProcessElementEvent() System.Xml.XsdValidatingReader.ProcessReaderEvent() System.Xml.XsdValidatingReader.Read() System.Xml.XmlLoader.LoadNode(Boolean skipOverWhitespace) System.Xml.XmlLoader.LoadDocSequence(XmlDocument parentDoc) System.Xml.XmlLoader.Load(XmlDocument doc, XmlReader reader, Boolean preserveWhitespace) System.Xml.XmlDocument.Load(XmlReader reader) NHibernate.Cfg.Configuration.LoadMappingDocument(XmlReader hbmReader, String name) NHibernate.Cfg.Configuration.AddInputStream(Stream xmlInputStream, String name) NHibernate.Cfg.Configuration.AddDocument(XmlDocument doc, String name) NHibernate.Cfg.Configuration.AddDocument(XmlDocument doc) FluentNHibernate.PersistenceModel.Configure(Configuration cfg) in d:\Builds\FluentNH\src\FluentNHibernate\PersistenceModel.cs: line 189 FluentNHibernate.Automapping.AutoPersistenceModel.Configure(Configuration configuration) in d:\Builds\FluentNH\src\FluentNHibernate\Automapping\AutoPersistenceModel.cs: line 126 FluentNHibernate.Cfg.AutoMappingsContainer.Apply(Configuration cfg) in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\AutoMappingsContainer.cs: line 71 FluentNHibernate.Cfg.MappingConfiguration.Apply(Configuration cfg) in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\MappingConfiguration.cs: line 56 FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs: line 110 FluentNHibernate.Cfg.FluentConfiguration.BuildConfiguration() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs: line 119 FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs: line 93 FluentNHibernate.Cfg.FluentConfiguration.BuildSessionFactory() in d:\Builds\FluentNH\src\FluentNHibernate\Cfg\FluentConfiguration.cs: line 98 UniversityExchange.DataTests.SQLiteDatabaseScope2.BuildConfiguration() in C:\Web Projects\UniversityExchange\Trunk\Src\Tests\DataTests\SQLiteDatabaseScope.cs: line 25
UniversityExchange.DataTests.SQLiteDatabaseScope2..ctor() in C:\Web Projects\UniversityExchange\Trunk\Src\Tests\DataTests\SQLiteDatabaseScope.cs: line 17 UniversityExchange.DataTests.TestingBase.BaseInitialize() in C:\Web Projects\UniversityExchange\Trunk\Src\Tests\DataTests\TestingBase.cs: line 27