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I get this error when trying to execute my SSRS reports. Client found response content type of '', but expected 'text/xml'.
The request failed with an empty response.
VB Code:
Private Sub btnprint_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnprint.Click
        'RenderPDF()
        Dim rview As New Microsoft.Reporting.WebForms.ReportViewer()
        Dim apr As New AppSettingsReader()
        rview.ServerReport.ReportServerUrl = New Uri(apr.GetValue("ReportServer", GetType(String)))
        Dim paramList As New System.Collections.Generic.List(Of Microsoft.Reporting.WebForms.ReportParameter)()
        paramList.Add(New Microsoft.Reporting.WebForms.ReportParameter("@DateServed", RadDatePick.SelectedDate))
        paramList.Add(New Microsoft.Reporting.WebForms.ReportParameter("@Location", ddlSch.SelectedValue))
        paramList.Add(New Microsoft.Reporting.WebForms.ReportParameter("@MenuType", ddlmenutype.SelectedValue))
        rview.ServerReport.ReportPath = "/ReportFolder/ReportName"
        rview.ServerReport.SetParameters(paramList)
        Dim mimeType As String = Nothing
        Dim encoding As String = Nothing
        Dim extension As String = Nothing
        Dim deviceInfo As String = Nothing
        Dim streamIds As String() = Nothing
        Dim warnings As Microsoft.Reporting.WebForms.Warning() = Nothing
        Dim format As String = "PDF"
        deviceInfo = "<DeviceInfo>" + "<SimplePageHeaders>True</SimplePageHeaders>" + "</DeviceInfo>"
        Dim bytes As Byte() = rview.ServerReport.Render(format, deviceInfo, mimeType, encoding, extension, streamIds, warnings)
        Response.Clear()
        If format = "PDF" Then
            Response.ContentType = "application/pdf"
            Response.AddHeader("Content-disposition", "filename=output.pdf")
        End If
        Response.OutputStream.Write(bytes, 0, bytes.Length)
        Response.OutputStream.Flush()
        Response.OutputStream.Close()
        Response.Flush()
        Response.Close()
    End Sub
Posted 28-Mar-11 5:16am
Updated 28-Mar-11 5:21am
v2
Comments
Sandeep Mewara 28-Mar-11 11:21am
   
Always format your code by PRE tags. They make the question readable.
Sandeep Mewara 28-Mar-11 12:15pm
   
Sure it's not a timeout issue?
Rohit.Net100 28-Mar-11 13:46pm
   
no..its not.
Tarun.K.S 29-Mar-11 3:35am
   
I suspect it might be because of unstructured XML.

1 solution

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Solution 1

Check this

Service Account Requirements for Reporting Services in a SharePoint deployment


Restrictions on using built-in accounts apply to some deployment topologies of Reporting Services that include a report server running in SharePoint integrated mode. The following combination of factors will result in service account requirements:
* Report Server is integrated with a SharePoint farm comprising more than one computer.
* The report server and SharePoint Central Administration web site run on separate computers.

In this scenario, if the Report Server service runs under a built-in account such as NetworkService, the Grant database access option in SharePoint Central Administration will not work correctly. Consequently, accessing any Reporting Services feature through a SharePoint site will result in the following error:

"An unexpected error occurred while connecting to the report server. Verify that the report server is available and configured for SharePoint integrated mode. --> Server was unable to process request. --> Client found response content type of 'text/html; charset=utf-8', but expected 'text.xml'."

Choose either of the following approaches to avoid this error:

*On the computer that hosts the report server, continue to run the Report Server service as NetworkService and add the built-in account, such as NT_AUTHORITY\NetworkService to the WSS_WPG Windows group.

-- Or --

*Configure the service account to run under a domain user account as follows:
1.Start the Reporting Services Configuration tool and connect to the report server.
2.On the Service Account page, click Use another account, enter a domain user account, and click Apply.
3.Click Web Service Identity, for Report Server, click New, type an application Restart the Report Server service.
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