Hello, I have a report with a little scriptlet in it, but everytime I try to compile it the following error is displayed: Compiling scriptlet source file... C:Dokumente und Einstellungenrene.ireportjstmpVerfuegbarkeit_Kategorien_jrxml_1217927798596Scriptlet.java Errors compiling C:Dokumente und Einstellungenrene.ireportjstmpVerfuegbarkeit_Kategorien_jrxml_1217927798596Scriptlet.java. See error messages above. C:Dokumente und Einstellungenrene.ireportjstmpVerfuegbarkeit_Kategorien_jrxml_1217927798596Scriptlet.java:4: cannot access it.businesslogic.ireport.IReportScriptlet bad class file: C:ProgrammeJasperSoftiReport-3.0.0.libiReport.jar(it/businesslogic/ireport/IReportScriptlet.class) class file has wrong version 49.0, should be 47.0 Please remove or make sure it appears in the correct subdirectory of the classpath. public class Verfuegbarkeit_Kategorien_jrxml_1217927798596Scriptlet extends it.businesslogic.ireport.IReportScriptlet { ^ 1 error Can anybody please help me with that? Thank You. Greeting, René