SSRS rendered report in MVC causing a 404 error

I'm getting an issue, see the below, when rendering a pdf report from our SSRS. I have tried to look into different sources and nothing works so far.

Microsoft.Reporting.WebForms.Internal.Soap.ReportingServices2005.Execution.RSExecutionConnection.MissingEndpointException: 'The attempt to connect to the report server failed. Check your connection information and that the report server is a compatible version.'

I have these line of codes which should work:

var parameters = new List<ReportParameter>  {       new ReportParameter("paramter_1", "paramter_1_value"),   };  var reportServerUrl = ConfigurationManager.AppSettings["ReportServerUrl"];  reportViewer.ServerReport.ReportServerUrl = new Uri(reportServerUrl);  reportViewer.ServerReport.ReportPath = '/ReportFolder/ReportName';  reportViewer.ServerReport.ReportServerCredentials = new CustomCredentials();  reportViewer.ServerReport.SetParameters(parameters);  reportViewer.ServerReport.Refresh();    var mimeType = "";  var encoding = "";  var filenameExtension = "pdf";  string[] streamids = null;  Warning[] warnings = null;  var outputFileName = "File_Name.pdf";  var bytes = reportViewer.ServerReport.Render("PDF", null, out mimeType, out encoding, out filenameExtension, out streamids, out warnings);  var pdfReport = File(bytes, "application/pdf", outputFileName);  

Am I doing anything wrong here?

https://stackoverflow.com/questions/65606083/ssrs-rendered-report-in-mvc-causing-a-404-error January 07, 2021 at 11:02AM