title: VB.NET Winforms render report as pdf giving "Error occurred during local report processing"
body: <p>Hello I am just trying to get my head round reporting in VB.NET.</p>
  
  <p>The report view preview is working fine so it doesn't appear to be a problem with the report itself but the render as pdf is giving "Error occurred during local report processing", inner exception is giving "Error occurred during report processing"</p>
  
  <p>I'm obviously missing something but can't see what.
  Be grateful if anybody could help shed any light on this please.</p>
  
  <pre><code>Private Sub ExportToPDFToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExportToPDFToolStripMenuItem1.Click
          Try
              Dim viewer As New Microsoft.Reporting.WinForms.ReportViewer
              Dim report = New Microsoft.Reporting.WinForms.LocalReport
              viewer.LocalReport.ReportEmbeddedResource = "ECUWMS.10day.rdlc"
              viewer.ProcessingMode = ProcessingMode.Local
  
  
              Dim rpJob As New ReportParameter
              rpJob.Name = "JobNo"
              rpJob.Values.Add("0000030")
              viewer.LocalReport.SetParameters(New ReportParameter() {rpJob})
              viewer.RefreshReport()
  
              Dim reportinfo As Byte() = viewer.LocalReport.Render("PDF") ' --&gt; Errors here.
  
              Dim SFD As New SaveFileDialog
              SFD.Filter = "PDF Files(*.PDF) | *.pdf"
              If SFD.ShowDialog() = Windows.Forms.DialogResult.OK Then
                  Dim newfile As New FileStream(SFD.FileName, FileMode.Create, FileAccess.Write)
                  newfile.Write(reportinfo, 0, reportinfo.Length)
                  newfile.Close()
  
              End If
          Catch ex As Exception
              MessageBox.Show(ex.Message, "Error", MessageBoxButtons.OK)
  
          End Try
  
      End Sub
  </code></pre>