I have installed jasperserver-3.0-linux-installer.bin. From JasperServer-User-Guide.pdf i create a simple report page 23 - 29. Report is created, but when I report submit, I got error: com.jaspersoft.jasperserver.api.JSException: jsexception.error.creating.connection at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.JdbcDataSourceService.createConnection(JdbcDataSourceService.java:61) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.BaseJdbcDataSource.setReportParameterValues(BaseJdbcDataSource.java:52) at com.jaspersoft.jasperserver.api.engine.jasperreports.service.impl.JdbcDataSourceService.setReportParameterValues(JdbcDataSourceService.java:66) ... could you help me Petr