I was parsing my xml file but i am getting 'stringsession' error. Please have look and let me know error

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns:typens="urn:Magento" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
    xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns="http://schemas.xmlsoap.org/wsdl/"
    name="Magento" targetNamespace="urn:Magento">
    <types>
        <schema xmlns="http://www.w3.org/2001/XMLSchema" targetNamespace="urn:Magento">
<!--            <import namespace="http://schemas.xmlsoap.org/soap/encoding/" schemaLocation="http://schemas.xmlsoap.org/soap/encoding/" />-->
            <complexType name="FixedArray">
                <complexContent>
                    <restriction base="soapenc:Array">
                        <!--<attribute ref="soapenc:arrayType" wsdl:arrayType="xsd:anyType[]"/>-->
                    </restriction>
                </complexContent>
            </complexType>
        </schema>
    </types>
    <message name="call">
        <part name="sessionId" type="xsd:string" />
        <part name="resourcePath" type="xsd:string" />
        <part name="args" type="xsd:anyType" />
    </message>
    <message name="startSessionReturn">
        <part name="sessionId" type="xsd:string" />
        <part name="resourcePath" type="xsd:string" />
        <part name="args" type="xsd:anyType" />
    </message>
    <message name="callResponse">
        <part name="callReturn" type="xsd:anyType" />
    </message>
    <message name="multiCall">
        <part name="sessionId" type="xsd:string" />
        <part name="calls" type="typens:FixedArray" />
        <part name="options" type="xsd:anyType" />
    </message>
    <message name="multiCallResponse">
        <part name="multiCallReturn" type="typens:FixedArray" />
    </message>
    <message name="endSession">
        <part name="sessionId" type="xsd:string" />
    </message>
    <message name="endSessionResponse">
        <part name="endSessionReturn" type="xsd:boolean" />
    </message>
    <message name="login">
        <part name="username" type="xsd:string" />
        <part name="apiKey" type="xsd:string" />
    </message>
    <message name="loginResponse">
        <part name="loginReturn" type="xsd:string" />
    </message>
    <message name="resources">
        <part name="sessionId" type="xsd:string" />
    </message>
    <message name="resourcesResponse">
        <part name="resourcesReturn" type="typens:FixedArray" />
    </message>
    <message name="globalFaults">
        <part name="sessionId" type="xsd:string" />
    </message>
    <message name="globalFaultsResponse">
        <part name="globalFaultsReturn" type="typens:FixedArray" />
    </message>
    <message name="resourceFaults">
        <part name="resourceName" type="xsd:string" />
        <part name="sessionId" type="xsd:string" />
    </message>
    <message name="resourceFaultsResponse">
        <part name="resourceFaultsReturn" type="typens:FixedArray" />
    </message>
    <message name="startSession" />
    <message name="startSessionResponse">
        <part name="startSessionReturn" type="xsd:string" />
    </message>
    <portType name="Mage_Api_Model_Server_HandlerPortType">
        <operation name="call">
            <documentation>Call api functionality</documentation>
            <input message="typens:call" />
            <output message="typens:callResponse" />
        </operation>
        <operation name="multiCall">
            <documentation>Multiple calls of resource functionality</documentation>
            <input message="typens:multiCall" />
            <output message="typens:multiCallResponse" />
        </operation>
        <operation name="endSession">
            <documentation>End web service session</documentation>
            <input message="typens:endSession" />
            <output message="typens:endSessionResponse" />
        </operation>
        <operation name="login">
            <documentation>Login user and retrive session id</documentation>
            <input message="typens:login" />
            <output message="typens:loginResponse" />
        </operation>
        <operation name="startSession">
            <documentation>Start web service session</documentation>
            <input message="typens:startSession" />
            <output message="typens:startSessionResponse" />
        </operation>
        <operation name="resources">
            <documentation>List of available resources</documentation>
            <input message="typens:resources" />
            <output message="typens:resourcesResponse" />
        </operation>
        <operation name="globalFaults">
            <documentation>List of resource faults</documentation>
            <input message="typens:globalFaults" />
            <output message="typens:globalFaultsResponse" />
        </operation>
        <operation name="resourceFaults">
            <documentation>List of global faults</documentation>
            <input message="typens:resourceFaults" />
            <output message="typens:resourceFaultsResponse" />
        </operation>
    </portType>
    <binding name="Mage_Api_Model_Server_HandlerBinding" type="typens:Mage_Api_Model_Server_HandlerPortType">
        <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http" />
        <operation name="call">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="multiCall">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="endSession">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="login">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="startSession">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="resources">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="globalFaults">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
        <operation name="resourceFaults">
            <soap:operation soapAction="urn:Mage_Api_Model_Server_HandlerAction" />
            <input>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </input>
            <output>
                <soap:body namespace="urn:Magento" use="literal" encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" />
            </output>
        </operation>
    </binding>
    <service name="MagentoService">
        <port name="Mage_Api_Model_Server_HandlerPort" binding="typens:Mage_Api_Model_Server_HandlerBinding">
            <soap:address location="http://test.xyz.com/index.php/api/soap/index/" />
        </port>
    </service>
</definitions>