Zero byte file with Aspose.PDF for SSRS 2.2

ddees · June 3, 2011, 8:02am

Hi - we are running Aspose.PDF for Reporting Services 2.2.0 on Windows 2003 R2 x64 / SQL Server 2008 Standard SP1.

The rendering extension has installed fine using the MSI package (both the rsreportserver.config and rssrvpolicy.config files contain Aspose entries) and the extension appears in the export list within SSRS reports.

When we try to export a report to PDF via Aspose.PDF format via the SSRS interactive site (/Reports), we get a zero byte file with no file extension. Normal PDF export works (as does the other file formats). The ReportServerService__date.log file just shows that it’s rendered something with no errors:

library!ReportServer_0-47!1e8c!06/03/2011-14:01:17:: i INFO: RenderFromSession(’/PCD Reports/Valuations/DiscretionaryValuation’)

webserver!ReportServer_0-47!1e8c!06/03/2011-14:01:17:: i INFO: Processed report. Report=’/PCD Reports/Valuations/DiscretionaryValuation’, Stream=’‘

When we export via the SSRS /ReportServer/, we get an Object reference not set to an instance of an object error with the following exception shown in the log

library!ReportServer_0-47!1bdc!06/03/2011-13:49:03:: i INFO: RenderFromSession(’/PCD Reports/Valuations/DiscretionaryValuation’)

library!ReportServer_0-47!1bdc!06/03/2011-13:49:04:: Unhandled exception was caught: System.NullReferenceException: Object reference not set to an instance of an object.

at Microsoft.ReportingServices.WebServer.ReportExecution2005Impl.InternalRender(String Format, String DeviceInfo, PageCountMode pageCountMode, Stream& Result, String& Extension, String& MimeType, String& Encoding, Warning[]& Warnings, String[]& StreamIds)

at Microsoft.ReportingServices.WebServer.ReportExecutionService.InternalRender(String Format, String DeviceInfo, PageCountMode PaginationMode, Stream& Result, String& Extension, String& MimeType, String& Encoding, Warning[]& Warnings, String[]& StreamIds)

at Microsoft.Reporting.WebForms.ServerReport.InternalRender(String format, String deviceInfo, PageCountMode pageCountMode, String& extension, String& mimeType, String& encoding, String[]& streams, Warning[]& warnings)

at Microsoft.Reporting.WebForms.ServerReport.Render(String format, String deviceInfo, NameValueCollection additionalParams, String& mimeType, String& extension)

at Microsoft.Reporting.WebForms.ServerModeSession.RenderReport(String format, Boolean allowInternalRenderers, String deviceInfo, NameValueCollection additionalParams, Boolean cacheSecondaryStreamsForHtml, String& mimeType, String& fileExtension)

at Microsoft.Reporting.WebForms.ExportOperation.PerformOperation(NameValueCollection urlQuery, HttpResponse response)

at Microsoft.Reporting.WebForms.HttpHandler.ProcessRequest(HttpContext context)

at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()

at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

library!ReportServer_0-47!1bdc!06/03/2011-13:49:04:: e ERROR: Throwing Microsoft.ReportingServices.Diagnostics.Utilities.InternalCatalogException: An internal error occurred on the report server. See the error log for more details., ;

Info: Microsoft.ReportingServices.Diagnostics.Utilities.InternalCatalogException: An internal error occurred on the report server. See the error log for more details. —> System.NullReferenceException: Object reference not set to an instance of an object.