column header not visible in output_问答_开发者

I have a JRXML file and when I try to compile that to jasper, it shows some error.

My JRXML file:

<?xml version="1.0" encoding="UTF-8"?>
<jasperReport xmlns="http://jasperreports.sourceforge.net/jasperreports" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://jasperreports.sourceforge.net/jasperreports http://jasperreports.sourceforge.net/xsd/jasperreport.xsd" name="new" language="groovy" pageWidth="595" pageHeight="842" columnWidth="555" leftMargin="20" rightMargin="20" topMargin="20" bottomMargin="20">
    <property name="ireport.zoom" value="1.0"/>
    <property name="ireport.x" value="0"/>
    <property name="ireport.y" value="0"/>
    <parameter name="orgId" class="java.lang.String">
        <defaultValueExpression><![CDATA[]]></defaultValueExpression>
    </parameter>
    <parameter name="fromDate" class="java.lang.String">
        <defaultValueExpression><![CDATA[]]></defaultValueExpression>
    </parameter>
    <parameter name="toDate" class="java.lang.String">
        <defaultValueExpression><![CDATA[]]></defaultValueExpression>
    </parameter>
    <queryString>
        <![CDATA[select
      a.CUS_INV_DT
      ,a.CUS_INV_NO
      ,(select cus_short_name from INV_CUST_MASTER where org_id = a.ORG_ID and cus_code = a.CUS_INV_CUS_CODE) as CUST_NAME
      ,(select CUS_ORD_NET_VAL from INV_CUST_SO_SUMRY where ORG_ID = a.ORG_ID and cus_ord_cus_code =  a.cus_inv_cus_code and cus_ord_no = a.CUS_INV_SALES_ORD_NO)as CUS_ORD_NET_VAL
      ,(SELECT FST_NAME FROM USER_MASTER WHERE ORG_ID = a.ORG_ID AND USER_ID = a.LAST_UPDATED_BY) as UPDATED_BY
       ,a.CUS_INV_STATUS
    from  INV_CUST_INVOICE_SUMRY a
    where
        a.ORG_ID = $P{orgId}
        and a.CUS_INV_DT between $P{fromDate}  AND  $P{toDate} order by a.CUS_INV_NO]]>
    </queryString>
    <field name="CUS_INV_DT" class="java.sql.Timestamp"/>
    <field name="CUS_INV_NO" class="java.lang.String"/>
    <field name="CUST_NAME" class="java.lang.String"/>
    <field name="CUS_ORD_NET_VAL" class="java.math.BigDecimal"/>
    <field name="UPDATED_BY" class="java.lang.String"/>
    <field name="CUS_INV_STATUS" class="java.lang.String"/>
    <background>
        <band splitType="Stretch"/>
    </background>
    <title>
        <band height="29" splitType="Stretch">
            <staticText>
                <reportElement x="100" y="0" width="100" height="20"/>
                <textElement/>
                <text><![CDATA[CUS_INV_NO]]></text>
            </staticText>
            <staticText>
                <reportElement x="0" y="0" width="100" height="20"/>
                <textElement/>
                <text><![CDATA[CUS_INV_DT]]></text>
            </staticText>
            <staticText>
                <reportElement x="200" y="0" width="100" height="20"/>
                <textElement/>
                <text><![CDATA[CUST_NAME]]></text>
            </staticText>
            <staticText>
                <reportElement x="300" y="0" width="129" height="20"/>
                <textElement/>
                <text><![CDATA[CUS_ORD_NET_VAL]]></text>
            </staticText>
            <staticText>
                <reportElement x="429" y="0" width="100" height="20"/>
                <textElement/>
                <text><![CDATA[UPDATED_BY]]></text>
            </staticText>
            <staticText>
                <reportElement x="529" y="0" width="26" height="20"/>
                <textElement/>
                <text><![CDATA[CUS_INV_STATUS]]></text>
            </staticText>
        </band>
    </title>
    <detail>
        <band height="24" splitType="Stretch">
            <textField>
                <reportElement x="0" y="0" width="100" height="20"/>
                <textElement/>
                <textFieldExpression class="java.sql.Timestamp"><![CDATA[$F{CUS_INV_DT}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="100" y="0" width="100" height="20"/>
                <textElement/>
                <textFieldExpression class="java.lang.String"><![CDATA[$F{CUS_INV_NO}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="200" y="0" width="100" height="20"/>
                <textElement/>
                <textFieldExpression class="java.lang.String"><![CDATA[$F{CUST_NAME}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="300" y="0" width="129" height="20"/>
                <textElement/>
                <textFieldExpression class="java.math.BigDecimal"><![CDATA[$F{CUS_ORD_NET_VAL}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="429" y="0" width="100" height="20"/>
                <textElement/>
                <textFieldExpression class="java.lang.String"><![CDATA[$F{UPDATED_BY}]]></textFieldExpression>
            </textField>
            <textField>
                <reportElement x="529" y="0" width="26" height="20"/>
                <textElement/>
                <textFieldExpression class="java.lang.String"><![CDATA[$F{CUS_INV_STATUS}]]></textFieldExpression>
            </textField>
        </band>
    </detail>
    <columnFooter>
        <band height="45" splitType="Stretch"/>
    </columnFooter>
    <pageFooter>
        <band height="54" splitType="Stretch"/>
    </pageFooter>
    <summary>
        <band height="42" splitType="Stretch"/>
    </summary>
</jasperReport>

when i try to compile to jasper it shows the following error

net.sf.jasperreports.engine.JRException: Document root element "jasperReport", must match DOCTYPE root "null".
    at net.sf.jasperreports.engine.xml.JRXmlLoader.loa开发者_开发知识库dXML(JRXmlLoader.java:242)
    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)
    at net.sf.jasperreports.engine.JasperCompileManager.compileReportToFile(JasperCompileManager.java:107)
    at com.inv.util.comp.main(comp.java:18)
Caused by: org.xml.sax.SAXParseException: Document root element "jasperReport", must match DOCTYPE root "null".
    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.rootElementSpecified(Unknown Source)
    at org.apache.xerces.impl.dtd.XMLDTDValidator.handleStartElement(Unknown Source)
    at org.apache.xerces.impl.dtd.XMLDTDValidator.startElement(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentScannerImpl$ContentDispatcher.scanRootElementHook(Unknown Source)
    at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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.commons.digester.Digester.parse(Digester.java:1745)
    at net.sf.jasperreports.engine.xml.JRXmlLoader.loadXML(JRXmlLoader.java:238)
    ... 6 more