Unexpected Error

Could someone tell me what I'm doing wrong?
I've got the following schema and XML files.
When WSAD tries to validate the XML I get the error message below.
Thanks,
Paul M Green


client.xsd
----------
<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema
	targetNamespace="http://app.co.com/ns/client"
	xmlns="http://app.co.com/ns/client"
	xmlns:xsd="http://www.w3.org/2001/XMLSchema"
>
	<xsd:element name="routingData">
		<xsd:complexType>
			<xsd:sequence>
				<xsd:element name="clientApplication"
type="xsd:string"/>
			</xsd:sequence>
		</xsd:complexType>
	</xsd:element>
</xsd:schema>


client.xml
----------
<?xml version="1.0" encoding="UTF-8"?>
<routingData
	xmlns="http://app.co.com/ns/client"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://app.co.com/ns/client client.xsd"
>
	<clientApplication/>
</routingData>


WSAD 5 Error Message
--------------------
cvc-complex-type.2.4.a: Invalid content starting with element
clientApplication'. The content must match '("":clientApplication)'.

Received on Wednesday, 26 February 2003 14:59:32 UTC