Error in Printing Jasper Report with Sub Reports in openerp

Question

I want to print a jasper report which is having a subreport in it. but when i am printing it in openerp with the help of jasper reports module it is showing the error. as "Report Error Failed to invoke method execute in class com.nantic.jasperreports.JasperServer: null"

Sehrish · Answer

A complete guide to create sub-reports in iReport [Jasper Reporting]: http://learnopenerp.blogspot.com/2017/11/how-to-add-subreport-in-jasper-report.html

Akhil P Sivan · Answer

Hi,
Hope you are using an XML data source method.
While adding subreport to main report, you need to ensure two steps done:
1. Add a new parameter to the main report with parameter class under properties, set to *Object*
2.* *While adding the subreport to main report, in the wizard select *Use a JRDatasource Expression* and select the parameter defined above.

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