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Hello,

I have created Jasper template. Very simple, from blank with only one Static Text field in Column Header.

Then I create Generic Document – add label, name, description, set Type to Report, Engine to Jasper Report Engine, set State to Development and upload template. No Datasource, no Drivers, no other options, attributes or functionalities. If I run the report I get error in Knowage UI:

An error has occurred. Retry later.
If the problems persists, contact the system administrator.

And the logs are:

20 Oct 2021 11:25:02,147 ERROR it.eng.spagobi.utilities.engines.AbstractEngineStartServlet.handleException:79 - Service execution failed

it.eng.spagobi.utilities.engines.SpagoBIEngineException: An error occurred while executing report. Check log file for more information

        at it.eng.spagobi.engines.jasperreport.services.JasperReportEngineStartAction.doService(JasperReportEngineStartAction.java:111)

......

Caused by: it.eng.spagobi.engines.jasperreport.JasperReportEngineRuntimeException: Impossible to run report

        at it.eng.spagobi.engines.jasperreport.JasperReportEngineInstance.runReport(JasperReportEngineInstance.java:131)

        at it.eng.spagobi.engines.jasperreport.services.JasperReportEngineStartAction.doService(JasperReportEngineStartAction.java:102)

        ... 71 more

Caused by: it.eng.spagobi.engines.jasperreport.JasperReportEngineRuntimeException: Impossible to run report

        at it.eng.spagobi.engines.jasperreport.JasperReportEngineInstance.runReport(JasperReportEngineInstance.java:261)

        at it.eng.spagobi.engines.jasperreport.JasperReportEngineInstance.runReport(JasperReportEngineInstance.java:129)

        ... 72 more

Caused by: java.lang.NullPointerException

        at it.eng.spagobi.engines.jasperreport.JasperReportEngineInstance.runReport(JasperReportEngineInstance.java:223)

        ... 73 more

I there any working example with Jasper? Because I can run reports based on BIRT, but if I try to run ANY Jasper based report I get errors.
Environment Knowage 8.0; CentOS; Firefox/Chrome; TIBCO Jaspersoft Studio-6.17.0;
asked Oct 20, 2021 in Admin and Developer Functionalities by daynewss (250 points) | 1 view
I have downloaded iReport 5.6.0 and created Jasper report with it - same error.
Is it because Jasper Reports template only avaliable in Knowage Enterprice?

https://www.knowage-suite.com/site/product/enterprise-reporting/

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