SAPBusinessObjects.WPF.Viewer (Object reference not set to an instance of an object.)

I have an issue with making Crystal Report working, when i try to update the data of the report. When the WPF window opens it works fine and i have no problems but when i try to do a refresh of the data it give me this error :

System.NullReferenceException was unhandled
  HResult=-2147467261
  Message=Object reference not set to an instance of an object.
  Source=SAPBusinessObjects.WPF.Viewer

I started to do this project in VS 2012 but had to change back to VS 2010 because win32 for XP is not supported.

If make this windows.form project i dont have any problems with my code. it's only in WPF.

Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Imports Scs.ChemicalReportViewer
Imports System.Data

Class MainWindow
    Private crChemicalReport As New ChemicalReport
    Private objQryCmd As New Data.QryCmd
    Private objChemicalReportDB As New Data.ChemicalReportViewerDB

    Private Sub mnuExit_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
        Application.Current.Shutdown()
    End Sub

    Private Sub mnuRefresh_Click(ByVal sender As Object, ByVal e As RoutedEventArgs)
        Call GetReportData()
    End Sub

  Public Sub New()

        ' This call is required by the designer.
        InitializeComponent()

        ' Add any initialization after the InitializeComponent() call.
        crvMainReportView.Owner = Me

    End Sub

    Private Sub GetReportData()
        Dim dt As DataTable = New DataTable
        Dim qryTemp As String = String.Empty

        Try
            'If Not IsNothing(crChemicalReport) Then
            '    crChemicalReport.Dispose()
            'End If

            'Gets the select query for the chemical report
            qryTemp = objQryCmd.QueryGetReportByDate(CDate("2013-02-11"),
                                                     CDate("2013-02-11"))

            'Gets the records from the database
            dt = objChemicalReportDB.GetReportByDate(qryTemp)

            'Checks to see if there are any records found in the datatable
            If dt.Rows.Count = 0 Then

            Else
                'Set the data source for the report
                crChemicalReport.SetDataSource(dt)

                'Displays the Current Datatable in the report
                crvMainReportView.ViewerCore.ReportSource = crChemicalReport
            End If

        Catch exCrystalReport As CrystalReportsException
            MessageBox.Show(exCrystalReport.ToString)
        Catch exSystem As Exception
            MessageBox.Show(exSystem.ToString)
        End Try
    End Sub
    Private Sub MainWindow_Loaded(sender As Object, e As System.Windows.RoutedEventArgs) Handles Me.Loaded
        crvMainReportView.Owner = Window.GetWindow(Me)
        Call GetReportData()
    End Sub

    Private Sub crvMainReportView_Refresh(source As Object, e As SAPBusinessObjects.WPF.Viewer.ViewerEventArgs) Handles crvMainReportView.Refresh
       Call GetReportData()
    End Sub
End Class

When the "Object reference not set to an instance of an object." is thrown, it is on this part of the code in the Application.g.vb

    '''<summary>
    '''Application Entry Point.
    '''</summary><System.STAThreadAttribute(),  _
     System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
     System.CodeDom.Compiler.GeneratedCodeAttribute("PresentationBuildTasks", "4.0.0.0")>  _
    Public Shared Sub Main()
        Dim app As Application = New Application()
        app.InitializeComponent
        app.Run <-- where the "System.NullReferenceException was unhandled"
    End Sub

This was the same place in VS 2012 it was happening, any Ideas of how I can get around this?

I am also using CR for VS 13.0.5 version.

I might be able to give you IntelliTrace, also.

thank you in advance and for any help

Shane