Report Manager Subscription gives us this error intermittently. The Subscriptions for a report may run successfully, say 10 times in a row. Then the subcriptions for the report will fail 4 times in a row. We noticed that the Aspose ppt rendering extension throws an exception “object reference not set to an instance of object”.
Please help us with this frustrating problem. Thanks!
Here is the inner exception stack trace:
Call to RenderFirst( '/Yield Reports/SystemFirstPassFru4WeekYield' )
ReportingServicesService!reportrendering!4!02/11/2009-02:45:28:: e ERROR: Throwing Microsoft.ReportingServices.ReportProcessing.WrapperReportRenderingException: An error occurred during rendering of the report., ;
Info: Microsoft.ReportingServices.ReportProcessing.WrapperReportRenderingException: An error occurred during rendering of the report. ---> Microsoft.ReportingServices.ReportRendering.ReportRenderingException: An error occurred during rendering of the report. ---> System.NullReferenceException: Object reference not set to an instance of an object.
at b3.ap()
at j4.f()
at b3.aj()
at b3.x()
at Aspose.Slides.ReportingServices.PptRenderer.a(b3 A_0, g0 A_1, Boolean A_2, Int32 A_3, Int32 A_4, Boolean A_5)
at Aspose.Slides.ReportingServices.PptRenderer.a(Report A_0, NameValueCollection A_1, EvaluateHeaderFooterExpressions A_2, CreateAndRegisterStream A_3, Int32 A_4)
at Aspose.Slides.ReportingServices.PptRenderer.Render(Report report, NameValueCollection reportServerParameters, NameValueCollection deviceInfo, NameValueCollection clientCapabilities, EvaluateHeaderFooterExpressions evaluateHeaderFooterExpressions, CreateAndRegisterStream createAndRegisterStream)
--- End of inner exception stack trace ---
at Aspose.Slides.ReportingServices.PptRenderer.Render(Report report, NameValueCollection reportServerParameters, NameValueCollection deviceInfo, NameValueCollection clientCapabilities, EvaluateHeaderFooterExpressions evaluateHeaderFooterExpressions, CreateAndRegisterStream createAndRegisterStream)
at Microsoft.ReportingServices.ReportProcessing.ReportProcessing.RenderReport(IRenderingExtension renderer, DateTime executionTimeStamp, GetReportChunk getCompiledDefinitionCallback, ProcessingContext pc, RenderingContext rc, CreateReportChunk cacheDataCallback, Boolean& dataCached)
--- End of inner exception stack trace ---