WSDLException while parsing wsdl

When I am running wsdl2Java task I am getting the following error

[wsdl2java] [Fatal Error] StocksQuote.wsdl:11:34: The prefix "xsd" for element "xsd:schema" is not bound.
[wsdl2java] WSDLToJava Error: java.lang.RuntimeException: Fail to create wsdl definition from : file:/D:/Prasad/workspace_webservices/StockQuotation/StocksQuote.wsdl
[wsdl2java] Caused by : WSDLException: faultCode=PARSER_ERROR: Problem parsing 'file:/D:/Prasad/workspace_webservices/StockQuotation/StocksQuote.wsdl'.: The prefix "xsd" for element "xsd:schema" is not bound.

Below is my wsdl2java anttask and wsdl

///build file
	<taskdef name="wsdl2java"
	           classname="org.apache.cxf.ant.extensions.WSDL2JavaTask"
	  		   classpathref="lib.path"/>

	<target name="Wsdl2javaBuild">
		<echo level="info" message="Generating code using wsdl2java..."/>
		<mkdir dir="${temp}"/>
		<mkdir dir="${build.dir}"/>
		<wsdl2java wsdl="StocksQuote.wsdl" 
		           sourceDestDir="${temp}"
		           destDir="${build.dir}"/>
	</target>

////StocksQuote.wsdl
<definitions
  targetNamespace="http://com.stockquote/wsdl"
  xmlns="http://schemas.xmlsoap.org/wsdl/"
  xmlns:tns="http://w3.ibm.com/schemas/services/2002/11/15/stockquote/wsdl"
  xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
  xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"
  xmlns:types="http://com.stockquote">
   <types>
     <xsd:schema elementFormDefault="qualified"
        targetNamespace=
        "http://com.stockquote/">
          <import namespace=
                "http://com.stockquote/"
             location="StockQuote.xsd/" />
     </xsd:schema>
   </types>
   <message name="getStockQuoteReq">
     <part name="parameters" element="types:getStockQuote" />
   </message>
   <message name="getStockQuoteResp">
     <part name="parameters" element="types:getStockQuoteResponse" />
   </message>
   <portType name="StockQuotePortType">
        <operation name="getStockQuote">
             <input message="tns:getStockQuoteReq" />
             <output message="tns:getStockQuoteResp" />
        </operation>
   </portType>
<binding name="StockQuoteSOAPBinding" type="tns:StockQuotePortType">
           <soap:binding style="document"
              transport="http://schemas.xmlsoap.org/soap/http" />
           <operation name="getStockQuote">
                <soap:operation style="document" soapAction="getStockQuote" />
                <input>
                     <soap:body use="literal" />
                </input>
                <output>
                     <soap:body use="literal" />
                </output>
           </operation>
      </binding>
      <service name="StockQuoteService">
           <port name="StockQuoteSOAPPort" binding="tns:StockQuoteSOAPBinding">
                <soap:address
                   location=
                   "http://localhost:8080/AxisWeb/services/StockQuoteSOAPPort" />
           </port>
      </service>
</definitions>

Select allOpen in new window