.Rdlc Report in MVC project - Managed Debugging Assistant 'PInvokeStackImbalance'

Question

_{Tuesday, August 6, 2019 9:41 PM}

Hello everyone,

I am so close to getting my last report up and running. I have not had this problem with any other reports. I am trying to create a report based off a database record. When I go to create the report by LocalReport and creating the parameters for the report I get the error message ‘Managed Debugging Assistant 'PInvokeStackImbalance' : 'A call to PInvoke function 'Microsoft.ReportViewer.Common!Microsoft.ReportingServices.Rendering.ImageRenderer.FontPackage::CreateFontPackage' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.'

This is a .rdlc report for my MVC project. The record is correct and the values get inserted but when I go to display it /create it the report errors out. On the line ‘renderedBytes = localReport.Render(

            /* TRACKER_TEST Database Connection ~ Debugging & Testing */
            TRACKER_TESTDataSet dataSet = new TRACKER_TESTDataSet();
            TRACKER_TESTDataSetTableAdapters.Service_Report_FieldsTableAdapter adapter = new TRACKER_TESTDataSetTableAdapters.Service_Report_FieldsTableAdapter();
            LocalReport localReport = new LocalReport();
            localReport.ReportPath = Server.MapPath("~/ReportForms/VirtualService2.rdlc");
            List<TRACKER_TESTDataSet.Service_Report_FieldsRow> report = new List<TRACKER_TESTDataSet.Service_Report_FieldsRow>();
            foreach(var row in list)
            {
                report.Add(adapter.GetDataBy(row.SN1, row.SN2).First());
            }
            ReportDataSource rds = new ReportDataSource("Service_Data", report);
            localReport.DataSources.Add(rds);


            // command specifies whether its a PDF EXCEL WORD IMAGE doc
            string reportType = command;
            string mimeType, encoding, fileNameExtension;

            string deviceInfo =
                "<DeviceInfo>" +
                "   <OutputFormat>" + command + "</OutputFormat>" +
                "   <PageWidth>8.5in</PageWidth>" +
                "   <PageHeight>11in</PageHeight>" +
                "   <MarginTop>0.5in</MarginTop>" +
                "   <MarginLeft>0.3in</MarginLeft>" +
                "   <MarginRight>0.3in</MarginRight>" +
                "   <MarginBottom>0.5</MarginBottom>" +
                "</DeviceInfo>";

            Warning[] warnings;
            string[] streams;
            byte[] renderedBytes;

            renderedBytes = localReport.Render(
                reportType,
                deviceInfo,
                out mimeType,
                out encoding,
                out fileNameExtension,
                out streams,
                out warnings);

            return File(renderedBytes, mimeType);
        }

All replies (3)

_{Wednesday, August 7, 2019 6:53 AM}

Hello, ExceedingLife

Not clear from your question not enough for any to help you. but,  as per seen your code i found something wrong in your XML file In "deviceInfo" Variable.

Last BottonMargin missing IN  <MarginBottom>0.5in</MarginBottom>" . OR  var renderedBytes; instead of  byte[] renderedBytes;

Thanks.

_{Wednesday, August 7, 2019 2:07 PM}

What are you missing?

I have a report .rdlc created

and that is my full method which creates it. this is the top of the method

 public ActionResult ReportGenerator(List<Service_Report_Fields> list, string command)
        {          
            /* TRACKER_TEST Database Connection ~ Debugging & Testing */
            TRACKER_TESTDataSet dataSet = new TRACKER_TESTDataSet();
            TRACKER_TESTDataSetTableAdapters.Service_Report_FieldsTableAdapter adapter = new TRACKER_TESTDataSetTableAdapters.Service_Report_FieldsTableAdapter();
            LocalReport localReport = new LocalReport();
            localReport.ReportPath = Server.MapPath("~/ReportForms/VirtualService2.rdlc");
            List<TRACKER_TESTDataSet.Service_Report_FieldsRow> report = new List<TRACKER_TESTDataSet.Service_Report_FieldsRow>();
            foreach(var row in list)
            {
                report.Add(adapter.GetDataBy(row.SN1, row.SN2).First());
            }
            ReportDataSource rds = new ReportDataSource("Service_Data", report);
            localReport.DataSources.Add(rds);


            // command specifies whether its a PDF EXCEL WORD IMAGE doc
            string reportType = command;
            string mimeType, encoding, fileNameExtension;

            string deviceInfo =
                "<DeviceInfo>" +
                "   <OutputFormat>" + command + "</OutputFormat>" +
                "   <PageWidth>8.5in</PageWidth>" +
                "   <PageHeight>11in</PageHeight>" +
                "   <MarginTop>0.5in</MarginTop>" +
                "   <MarginLeft>0.3in</MarginLeft>" +
                "   <MarginRight>0.3in</MarginRight>" +
                "   <MarginBottom>0.5</MarginBottom>" +
                "</DeviceInfo>";

            Warning[] warnings;
            string[] streams;
            byte[] renderedBytes;

            renderedBytes = localReport.Render(
                reportType,
                deviceInfo,
                out mimeType,
                out encoding,
                out fileNameExtension,
                out streams,
                out warnings);

            return File(renderedBytes, mimeType);

Here is my error

'Managed Debugging Assistant 'PInvokeStackImbalance' : 'A call to PInvoke function 'Microsoft.ReportViewer.Common!Microsoft.ReportingServices.Rendering.ImageRenderer.FontPackage::CreateFontPackage' has unbalanced the stack. This is likely because the managed PInvoke signature does not match the unmanaged target signature. Check that the calling convention and parameters of the PInvoke signature match the target unmanaged signature.''

It happens on 'renderedBytes = localReport.Render('

_{Monday, August 12, 2019 3:04 AM}

I'm running with the same problem here. It seems to be something with the version of ReportViewer.

If you don't have any specific font in your report, try to insert this inside your <DeviceInfo> node:

<EmbedFonts>None</EmbedFonts>