WCF Service Problem

Question

Hai , this venkadesan. I am very new for Silverlight .i am using silverlight 3.0 in vb.net. I am using report sharp shooter (Prepentuum software Report Tool).
The below code is My WCF Code
Imports System.ServiceModel
Imports System.ServiceModel.Activation
Imports Meanew.Web.DataSet1TableAdapters
Imports PerpetuumSoft.Reporting.Silverlight.MsReporting
Imports PerpetuumSoft.Reporting.Silverlight.Server.ReportingServices
<ServiceContract(Namespace:="")> _
<AspNetCompatibilityRequirements(RequirementsMode:=AspNetCompatibilityRequirementsMode.Allowed)> _
Public Class RptServe1
    Inherits MsReportServiceLocal
    <OperationContract()> _
    Public Overloads Overrides Function GetReportDataSources(ByVal reportName As String, ByVal reportParameters As PerpetuumSoft.Reporting.Silverlight.Server.Core.ReportParameter()) As IList(Of LocalReportDataSource)
        Dim result As New List(Of LocalReportDataSource)()
        If reportName = "MOI.rdlc" Then
            Dim ta As New MOITableAdapter()
            result.Add(New LocalReportDataSource("DataSet1_MOI", ta.GetData()))
        End If
        Return (result)
   End Function
End Class
I am run the code i am faceing some problem . i am note below
The type 'Meanew.Web.RptServe1', provided as the Service attribute value in the ServiceHost directive could not be found
This is for Meanew.Web.RptServe1-solution name.web.service name
Pls help me any one
very urgent
advance thank you
by
venkadesan.e