Sqlite Guid column as a regular column

I have a Sqlite database that I am running some initials tests on, using Lightspeed 3.0 and the latest nightly build of the Express Edition. Once I can get pass this problem, I will more than likely be buying the developer edition.  I have a Titles data table in the Sqlite database. The primary key is an auto incrementing (INT32) identity field called TitleID.  I also have a regular UniqueId field (Guid column) that is used for external looks from another application. 

I am using the test command below of pulling a specific Title using the code below:

using (var unitOfWork = _context.CreateUnitOfWork())

{ var theTitle = unitOfWork.FindById<Title>(193); Console.WriteLine("Main Title: " + theTitle.TitleName); }

I get an error on the  var theTitle = unitOfWork.FindById<Title>(193);  line.

Mindscape.LightSpeed.LightSpeedException was unhandled

 Error Message="Unable to materialize field [UniqueId] on type [DemoLightSpeed.Title]. Check your table has an Id column and that your mappings are correct. See inner exception for details. "

  Source="Mindscape.LightSpeed"

  StackTrace:

       at Mindscape.LightSpeed.LightSpeedException.(Exception , String , Object[] )

       at Mindscape.LightSpeed.Model.FieldModel.Materialize(IDataProviderAdapter , Object , Object[] , Int32& )

       at Mindscape.LightSpeed.Mapping.EntityLoader.(UnitOfWorkBase , String , Entity , Object[] ,  )

       at Mindscape.LightSpeed.Mapping.EntityLoader.LoadEntityFromReader(AliasedTypeModel , Object , Boolean )

       at ..(AliasedTypeModel , QueryExpression , Order , Group , String , Boolean , Boolean )

       at ..(LightSpeedContext , List`1 , QueryExpression , Order , Group , String , Boolean , Boolean )

       at ..(AliasedTypeModel , IList , String , Boolean )

       at ..(TypeModel , Query , IList )

       at ..(UnitOfWorkBase , TypeModel , Query , IList )

       at ..(Query , TypeModel , IList )

       at ..(Query , IList )

       at Mindscape.LightSpeed.UnitOfWork.Find(Query query, IList results)

       at Mindscape.LightSpeed.UnitOfWorkBase.Find(Query query)

       at Mindscape.LightSpeed.UnitOfWork.FindOne(Query query)

       at Mindscape.LightSpeed.UnitOfWorkBase.FindOne[TEntity](Query query)

       at Mindscape.LightSpeed.UnitOfWorkBase.FindById[TEntity](Object id)

       at DemoLightSpeed.Program.Main(String[] args) in C:\Users\JeremyH\Documents\Visual Studio 2008\Projects\DemoLightSpeed\DemoLightSpeed\Program.cs:line 36

       at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)

       at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)

       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()

       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)

       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)

       at System.Threading.ThreadHelper.ThreadStart()

  InnerException: System.InvalidCastException

       Message="Unable to cast object of type 'System.Guid' to type 'System.String'."

       Source="Mindscape.LightSpeed"

       StackTrace:

            at Mindscape.LightSpeed.Data.DataProviderAdapter.
(Object[] , Int32 )

            at Mindscape.LightSpeed.Data.DataProviderAdapter.
(Object[] , Int32 )

            at Mindscape.LightSpeed.Model.FieldModel.<>c__DisplayClassb1.<CreateValueSetter>b__70(IDataProviderAdapter , Object , Object[] , Int32 )

            at Mindscape.LightSpeed.Model.FieldModel.Materialize(IDataProviderAdapter , Object , Object[] , Int32& )

The Inner Exception message is:  Unable to cast object of type 'System.Guid' to type 'System.String'.

If I remove the UniqueId property from the model of Titles, it works fine. But I am unable to find out where the code is trying to convert a System.Guid to a System.String, and why it is doing so.

Please let me know what is found.

Thanks.

Jeremy

jheier1102@yahoo.com