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.