ReportingServices2005.Execution

We are using a website that has a code page with the following at the top.

Imports Microsoft.Reporting.WebForms.Internal.Soap.ReportingServices2005.Execution

Inside the code page Class we have a function that uses the above to render an SSRS report to PDF and save it to a file and it works perfectly.  We tried to do the same on a new website on the same IIS server but are getting red underline errors in Visual Studio. I assume that I am missing something (reference or ???) on the new website but cannot figure it out.  Below is a sample of some of the code at the top of the function.

        Dim encoding As String
        Dim mimeType As String
        Dim extension As String
        Dim warnings As Warning() = Nothing
        Dim streamIDs As String() = Nothing

        ' ReportExecution object prepare   
        Dim rs As New ReportExecutionService()
        rs.Credentials = System.Net.CredentialCache.DefaultCredentials
        rs.Url = UtilClass.GetReportServerPath & "/ReportExecution2005.asmx"

        ' Render arguments   
        Dim result As Byte() = Nothing
        Dim strFileName As String = ""
        Dim reportPath As String = "/BodyShopReports/"
        Dim format As String = "PDF"
        Dim historyID As String = Nothing
        Dim devInfo As String = "<DeviceInfo><Toolbar>False</Toolbar></DeviceInfo>"
        Dim strOutputPath As String = HttpContext.Current.Server.MapPath("~/OfficeDocs/POFiles")

        ' Prepare report parameters   
        Dim parameters As ParameterValue()
        Select Case strReportName
            Case "WorkAuthorization"
                parameters = New ParameterValue(1) {}

                parameters(0) = New ParameterValue()
                parameters(0).Name = "RecordID"
                parameters(0).Value = intRecordID
                parameters(1) = New ParameterValue()
                parameters(1).Name = "ReportType"
                parameters(1).Value = "1"

For example I get underlined error on the following lines.

Dim warningsAs Warning() = Nothing

Dim rsAsNew ReportExecutionService()

Dim parametersAs ParameterValue()

I have no such problems on the first website. Thanks.