IREPORT : Exception: Element type "topPen" must be declared?

Question

i am making a report with IReport plugin it is running in Preview.
when i call this report in JAVA code it give me Exception
Nov 15, 2008 10:45:13 AM org.apache.commons.digester.Digester error
SEVERE: Parse Error at line 43 column 79: Element type "topPen" must be declared.
org.xml.sax.SAXParseException: Element type "topPen" must be declared.
        at org.apache.xerces.util.ErrorHandlerWrapper.createSAXParseException(Unknown Source)
        at org.apache.xerces.util.ErrorHandlerWrapper.error(Unknown Source)
        at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
        at org.apache.xerces.impl.XMLErrorReporter.reportError(Unknown Source)
        at org.apache.xerces.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source)
        at org.apache.xerces.impl.dtd.XMLDTDValidator.emptyElement(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)
        at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)
        at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
        at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
        at org.apache.xerces.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
        at org.apache.commons.digester.Digester.parse(Digester.java:1647)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:238)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:225)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:213)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:167)
        at net.sf.jasperreports.engine.xml.JRXmlLoader.load(JRXmlLoader.java:151)
JAVA code
try {    
        ConnectDB con = new ConnectDB();
        Map parameters = new HashMap();
        parameters.put("regNo", "2");
        JasperDesign jasperDesign = JRXmlLoader.load("c:/agreement.jrxml");
        JasperReport jasperReport = JasperCompileManager.compileReport(jasperDesign);
        JasperPrint jasperPrint = JasperFillManager.fillReport(jasperReport, parameters, con.getConnection());    
        JasperViewer.viewReport(jasperPrint);
    } catch (Exception ex) {
        JOptionPane.showMessageDialog(this, ex );  
    }

Answer 1

thanks for reply.
i made report with the help of wizard.
Either your XML is invalid according to its DTD, or the DTD is invalid.
how can i resolve this problem?