Why do I get Exception java.lang.NoClassDefFoundError org/codehaus/groovy/? -

i've try jasper report, i'm following tutorial this site

also downloaded sample source run , got no error. when create own report using ireport, compile it, , add .jasper file project. there exception when run program:

exception in thread "awt-eventqueue-0" java.lang.noclassdeffounderror: org/codehaus/groovy/runtime/callsite/callsitearray     @ report2_1343895135169_749208.$createcallsitearray(calculator_report2_1343895135169_749208)     @ report2_1343895135169_749208.$getcallsitearray(calculator_report2_1343895135169_749208)     @ report2_1343895135169_749208.<init>(calculator_report2_1343895135169_749208)     @ sun.reflect.nativeconstructoraccessorimpl.newinstance0(native method)     @ sun.reflect.nativeconstructoraccessorimpl.newinstance(nativeconstructoraccessorimpl.java:39)     @ sun.reflect.delegatingconstructoraccessorimpl.newinstance(delegatingconstructoraccessorimpl.java:27)     @ java.lang.reflect.constructor.newinstance(constructor.java:513)     @ java.lang.class.newinstance0(class.java:355)     @ java.lang.class.newinstance(class.java:308)     @ net.sf.jasperreports.engine.design.jrabstractjavacompiler.loadevaluator(jrabstractjavacompiler.java:112)     @ net.sf.jasperreports.engine.design.jrabstractcompiler.loadevaluator(jrabstractcompiler.java:333)     @ net.sf.jasperreports.engine.jaspercompilemanager.getevaluator(jaspercompilemanager.java:265)     @ net.sf.jasperreports.engine.fill.jrfilldataset.createcalculator(jrfilldataset.java:457)     @ net.sf.jasperreports.engine.fill.jrbasefiller.<init>(jrbasefiller.java:379)     @ net.sf.jasperreports.engine.fill.jrverticalfiller.<init>(jrverticalfiller.java:88)     @ net.sf.jasperreports.engine.fill.jrverticalfiller.<init>(jrverticalfiller.java:103)     @ net.sf.jasperreports.engine.fill.jrverticalfiller.<init>(jrverticalfiller.java:61)     @ net.sf.jasperreports.engine.fill.jrfiller.createfiller(jrfiller.java:153)     @ net.sf.jasperreports.engine.fill.jrfiller.fill(jrfiller.java:82)     @ net.sf.jasperreports.engine.jasperfillmanager.fill(jasperfillmanager.java:653)     @ net.sf.jasperreports.engine.jasperfillmanager.fill(jasperfillmanager.java:634)     @ net.sf.jasperreports.engine.jasperfillmanager.fillreport(jasperfillmanager.java:956)     @ view.maingui.btnexportactionperformed(maingui.java:871)     @ view.maingui.access$800(maingui.java:50)     @ view.maingui$10.actionperformed(maingui.java:541)     @ javax.swing.abstractbutton.fireactionperformed(abstractbutton.java:1995)     @ javax.swing.abstractbutton$handler.actionperformed(abstractbutton.java:2318)     @ javax.swing.defaultbuttonmodel.fireactionperformed(defaultbuttonmodel.java:387)     @ javax.swing.defaultbuttonmodel.setpressed(defaultbuttonmodel.java:242)     @ javax.swing.plaf.basic.basicbuttonlistener.mousereleased(basicbuttonlistener.java:236)     @ java.awt.component.processmouseevent(component.java:6267)     @ javax.swing.jcomponent.processmouseevent(jcomponent.java:3267)     @ java.awt.component.processevent(component.java:6032)     @ java.awt.container.processevent(container.java:2041)     @ java.awt.component.dispatcheventimpl(component.java:4630)     @ java.awt.container.dispatcheventimpl(container.java:2099)     @ java.awt.component.dispatchevent(component.java:4460)     @ java.awt.lightweightdispatcher.retargetmouseevent(container.java:4577)     @ java.awt.lightweightdispatcher.processmouseevent(container.java:4238)     @ java.awt.lightweightdispatcher.dispatchevent(container.java:4168)     @ java.awt.container.dispatcheventimpl(container.java:2085)     @ java.awt.window.dispatcheventimpl(window.java:2478)     @ java.awt.component.dispatchevent(component.java:4460)     @ java.awt.eventqueue.dispatchevent(eventqueue.java:599)     @ java.awt.eventdispatchthread.pumponeeventforfilters(eventdispatchthread.java:269)     @ java.awt.eventdispatchthread.pumpeventsforfilter(eventdispatchthread.java:184)     @ java.awt.eventdispatchthread.pumpeventsforhierarchy(eventdispatchthread.java:174)     @ java.awt.eventdispatchthread.pumpevents(eventdispatchthread.java:169)     @ java.awt.eventdispatchthread.pumpevents(eventdispatchthread.java:161)     @ java.awt.eventdispatchthread.run(eventdispatchthread.java:122) caused by: java.lang.classnotfoundexception: org.codehaus.groovy.runtime.callsite.callsitearray     @ java.lang.classloader.findclass(classloader.java:359)     @ java.lang.classloader.loadclass(classloader.java:307)     @ java.lang.classloader.loadclass(classloader.java:248)     ... 50 more 

here button action displaying report (this sample, report contain 1 text parameter: outputtext):

map params = new hashmap(); params.put("outputtext", "hello world"); try {         jasperprint printer = jasperfillmanager.fillreport(getclass().getresourceasstream("report2.jasper"), params, new jremptydatasource());         jasperviewer jv = new jasperviewer(printer);         jv.show();     } catch (jrexception ex) {         ex.printstacktrace();     } 

if it's dependency problem, i've imported required jar project, when use .jasper file tutorial there no problem, because of different version of ireport or else?

you need additional jar package using callsitearray class.

http://groovy.codehaus.org/download