Our customer just upgraded iReport to 5.1.0 from 4.01, however JasperReports still remains at version 3.7.6. I set the compatibility mode in iReport 5.1.0 to 3.7.5 since it doesn't have 3.7.6 (hmm, is this a hint) in the list of versions. When I run a jasper report compiled under the new 5.1.0 version (with compatibility of 3.7.5), I get one of two runtime exceptions: JRFillSubrepo E net.sf.jasperreports.engine.fill.JRFillSubreport prepare Fill 1769455273: exception java.lang.NullPointerExceptionat net.sf.jasperreports.engine.fill.JRFillImage.evaluateImage(JRFillImage.java:1034)at net.sf.jasperreports.engine.fill.JRFillImage.evaluate(JRFillImage.java:1004)at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:258)at net.sf.jasperreports.engine.fill.JRFillBand.evaluate(JRFillBand.java:499)at net.sf.jasperreports.engine.fill.JRVerticalFiller.fillTitle(JRVerticalFiller.java:326) JRFillSubrepo E net.sf.jasperreports.engine.fill.JRFillSubreport prepare Fill -723376141: exception java.lang.NullPointerExceptionat java.lang.Class.isAssignableFrom(Native Method)at net.sf.jasperreports.engine.fill.JRFillTextField.getFormat(JRFillTextField.java:706)at net.sf.jasperreports.engine.fill.JRFillTextField.evaluateText(JRFillTextField.java:394)at net.sf.jasperreports.engine.fill.JRFillTextField.evaluate(JRFillTextField.java:368)at net.sf.jasperreports.engine.fill.JRFillElementContainer.evaluate(JRFillElementContainer.java:258) Obviously there is some capatibility issue. However everyting I have read, says the versions are backwards compatible. Is there something else I need to do? Thanks in advance!
