Erro Chamar Relatorio iReport

Quando clico no botão para chamar o relatorio da erro, estou utilizando o netbeans
ação do botão para chamar o relatorio:

[code]Relatorios relat = null;
try {
relat = new Relatorios();
} catch (JRException ex) {
Logger.getLogger(TelaInicial.class.getName()).log(Level.SEVERE, null, ex);
}
try {
try {
relat.Relatorios();
} catch (JRException ex) {
Logger.getLogger(TelaInicial.class.getName()).log(Level.SEVERE, null, ex);
}

        } catch (SQLException ex) {
            Logger.getLogger(TelaInicial.class.getName()).log(Level.SEVERE, null, ex);
        }[/code]

Erro

Exception in thread "AWT-EventQueue-0" java.lang.NoClassDefFoundError: org/apache/commons/digester/Rule at net.sf.jasperreports.components.ComponentsExtensionsRegistryFactory.<clinit>(ComponentsExtensionsRegistryFactory.java:102) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:264) at net.sf.jasperreports.engine.util.JRClassLoader.loadClassForRealName(JRClassLoader.java:157) at net.sf.jasperreports.engine.util.JRClassLoader.loadClassForName(JRClassLoader.java:115) at net.sf.jasperreports.engine.util.ClassUtils.instantiateClass(ClassUtils.java:53) at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.instantiateRegistry(DefaultExtensionsRegistry.java:237) at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.loadRegistries(DefaultExtensionsRegistry.java:214) at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.loadRegistries(DefaultExtensionsRegistry.java:162) at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.getRegistries(DefaultExtensionsRegistry.java:133) at net.sf.jasperreports.extensions.DefaultExtensionsRegistry.getExtensions(DefaultExtensionsRegistry.java:105) at net.sf.jasperreports.engine.util.JRStyledTextParser.<clinit>(JRStyledTextParser.java:83) at net.sf.jasperreports.engine.fill.JRBaseFiller.<init>(JRBaseFiller.java:121) at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:88) at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:103) at net.sf.jasperreports.engine.fill.JRVerticalFiller.<init>(JRVerticalFiller.java:61) at net.sf.jasperreports.engine.fill.JRFiller.createFiller(JRFiller.java:153) at net.sf.jasperreports.engine.fill.JRFiller.fill(JRFiller.java:55) at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:446) at net.sf.jasperreports.engine.JasperFillManager.fill(JasperFillManager.java:276) at net.sf.jasperreports.engine.JasperFillManager.fillReport(JasperFillManager.java:745) at util.Relatorios.Relatorios(Relatorios.java:35) at erp.TelaInicial.SecretariaActionPerformed(TelaInicial.java:435) at erp.TelaInicial.access$1300(TelaInicial.java:18) at erp.TelaInicial$14.actionPerformed(TelaInicial.java:324) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2018) at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2341) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:376) at javax.swing.plaf.basic.BasicMenuItemUI.doClick(BasicMenuItemUI.java:833) at javax.swing.plaf.basic.BasicMenuItemUI$Handler.mouseReleased(BasicMenuItemUI.java:877) at java.awt.Component.processMouseEvent(Component.java:6505) at javax.swing.JComponent.processMouseEvent(JComponent.java:3321) at java.awt.Component.processEvent(Component.java:6270) at java.awt.Container.processEvent(Container.java:2229) at java.awt.Component.dispatchEventImpl(Component.java:4861) at java.awt.Container.dispatchEventImpl(Container.java:2287) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4832) at java.awt.LightweightDispatcher.processMouseEvent(Container.java:4492) at java.awt.LightweightDispatcher.dispatchEvent(Container.java:4422) at java.awt.Container.dispatchEventImpl(Container.java:2273) at java.awt.Window.dispatchEventImpl(Window.java:2719) at java.awt.Component.dispatchEvent(Component.java:4687) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:723) at java.awt.EventQueue.access$200(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:682) at java.awt.EventQueue$3.run(EventQueue.java:680) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:87) at java.awt.EventQueue$4.run(EventQueue.java:696) at java.awt.EventQueue$4.run(EventQueue.java:694) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:693) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:244) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:163) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:151) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:147) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:139) at java.awt.EventDispatchThread.run(EventDispatchThread.java:97) Caused by: java.lang.ClassNotFoundException: org.apache.commons.digester.Rule at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:423) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:356) ... 63 more

Parece que está precisando ajustar seu classpath.

Se você usa maven tente colocar essa dependência no seu POM:

org.apache.commons commons-digester3 3.2 with-deps

cara, está faltando a biblioteca! No ireport 5 essas são usadas:

commons-beanutils-1.8.2.jar
commons-collections-3.2.1.jar
commons-digester-2.1.jar
commons-javaflow-20060411.jar
commons-logging-1.1.jar
groovy-all-1.7.5.jar
iText-2.1.7.jar
jasperreports-5.0.0.jar
jcommon-1.0.15.jar

Valeu galera
estava faltando essa

commons-digester-2.1.jar