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Object reference not set to an instance of an object error on Sub reports

Hi,

I am getting this error when I extract and Aspose format. How do I trouble shoot this? It seems to be related to using subreports...

Example below

An error occurred while exporting the report. ,
error message,Object reference not set to an instance of an object.
stack trace," at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x2c44f534085b543c(TablixMember x25f90284444cb6d5, x693f8d3047025a5e xa806b754814b9ae0, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e, Boolean& x8fc2d66566293701)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x1c2f187ee03f6dda(TablixMember x25f90284444cb6d5, x693f8d3047025a5e xa806b754814b9ae0, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e, Boolean& x8fc2d66566293701)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x2c44f534085b543c(TablixMember x25f90284444cb6d5, x693f8d3047025a5e xa806b754814b9ae0, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e, Boolean& x8fc2d66566293701)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x1c2f187ee03f6dda(TablixMember x25f90284444cb6d5, x693f8d3047025a5e xa806b754814b9ae0, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e, Boolean& x8fc2d66566293701)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.xacf56269b403df30(x693f8d3047025a5e xa806b754814b9ae0, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x8251ebefa167c36f(x693f8d3047025a5e x25f90284444cb6d5, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x7233bcfe4883933c(x693f8d3047025a5e x25f90284444cb6d5, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x8251ebefa167c36f(x693f8d3047025a5e x25f90284444cb6d5, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x7233bcfe4883933c(x693f8d3047025a5e x25f90284444cb6d5, Int32 xa447fc54e41dfe06, Int32 xc941868c59399d3e)
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.x67fd1e157a0b4772()
at Aspose.Cells.ReportingServices.ReportItem.x4baaeff2346b420f.GetFormatDefine()
at Aspose.Cells.ReportingServices.ReportItem.xbd8cd0af7299d656.x78831a46799eb787(ReportItemCollection x5ae199cc021ab18c)
at Aspose.Cells.ReportingServices.ReportItem.x555897a1eb70677c.GetFormatDefine()
at Aspose.Cells.ReportingServices.ReportItem.x5d9a63140eb6b015.GetReportDefine()
at Aspose.Cells.ReportingServices.Renderer.x287918d12b9d430a(Report x64343a0786fb9a3f, NameValueCollection x4d7e972a483f38e6, NameValueCollection x769338e163ee6eb4, NameValueCollection x69ea43ef171861cd, Hashtable& xcc726f61cfb91835, CreateAndRegisterStream x6af66da7eca40f82)
at Aspose.Cells.ReportingServices.Renderer.Render(Report report, NameValueCollection reportServerParameters, NameValueCollection deviceInfo, NameValueCollection clientCapabilities, Hashtable& renderProperties, CreateAndRegisterStream createAndRegisterStream)"

Hi,

Please download and try the latest version: Aspose.Cells for Reporting Services v1.8.0.14.

If you still face an issue, please feel free to post, we will help you asap.