org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element

Hi,

I am using org.jdom.input.SAXBuilder to validate the xml againts the 
schema and I am getting this exception:

org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of 
element 'Transmission'.
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.xs.XMLSchemaValidator.handleStartElement(Unknown 
Source)
        at 
org.apache.xerces.impl.xs.XMLSchemaValidator.startElement(Unknown Source)
        at 
org.apache.xerces.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown 
Source)
        at 
org.apache.xerces.impl.XMLNSDocumentScannerImpl$NSContentDispatcher.scanRootElementHook(Unknown 
Source)
        at 
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$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.jdom.input.SAXBuilder.build(SAXBuilder.java:453)
        at org.jdom.input.SAXBuilder.build(SAXBuilder.java:851)
        at 
org.nexweb.otm.util.JDOMSchemaValidator.validateSchema(JDOMSchemaValidator.java:39)
Where 'Transmission' is the root element of my xml.

Here is my class

public class JDOMSchemaValidator
{ 
    public void validateSchema(String schemaFileName, File 
xmlDocumentFile)
    {
        try
        { //Create SAXBuilder object
            SAXBuilder saxBuilder = 
                new SAXBuilder("org.apache.xerces.parsers.SAXParser", 
true);

            //Set SAXBuilder parser to be a validating parser
            saxBuilder.setValidation(true);
 saxBuilder.setFeature("http://apache.org/xml/features/validation/schema", 

                                  true);

 
saxBuilder.setFeature("http://apache.org/xml/features/validation/schema-full-checking", 

                                  true);
 
saxBuilder.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation", 

                                   schemaFileName);

            //Create a ErrorHandler and set ErrorHandler on parser.
            Validator handler = new Validator();
            saxBuilder.setErrorHandler(handler);
            //Parse XML Document
            saxBuilder.build(xmlDocumentFile);
            //Output Validation Errors
            if (handler.validationError == true)
            {
                System.out.println("XML Document has Error:" + 
                                   handler.validationError + " " + 
 handler.saxParseException.getMessage());
 handler.saxParseException.printStackTrace();
            }
            else
            {
                System.out.println("XML Document is valid");
            }
        }
        catch (JDOMException jde)
        {
            System.out.println("JDOMException");
            jde.printStackTrace();
        }

        catch (IOException ioe)
        {
            System.out.println("IOException");
            ioe.printStackTrace();
        }
    }

public static void main(String[] argv) {
                String schemaFile = 
"file://F:/JavaProjects/WorkspaceDev/OTM/xml/catalog.xsd";
                File XmlFile = "catalog.xml";
                JDOMValidator validator = new JDOMValidator();
                validator.validateSchema(schemaFile, XmlFile);

        }
}
catalog.xsd

<?xml version="1.0" encoding="UTF-8" ?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            attributeFormDefault="unqualified"> 
 
 
  <xsd:element name = "Transmission">
 .........

catalog.xml

<?xml version="1.0" encoding="UTF-8"?>
<Transmission xmlns:xsi="http://www.w3.org/2001/XMLSchema" 
xsi:noNamespaceSchemaLocation="file://F:/JavaProjects/WorkspaceDev/OTM/xml/GLogXML.xsd">
  <TransmissionHeader>
   .........................


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