Error when opening a xsd file in BizTalk

[newuserxyz]

Hi!

I try to open a .xsd file in BizTalk 2004 and receive the following error:

The

http://www.w3.org/2001/XMLSchema.targetNamespace-Attribut

is not supported in this context
The content of the file is the following:

<?xml version='1.0' ?>
<xs:schema xmlns:xs="

http://www.w3.org/2001/XMLSchema"

xs:targetNamespace="

http://www.microsoft.com/team.xsd"

xmlns="http:tempuri.org/team.xsd" xs:elementFormDefault="qualified">

.......

What's wrong with the xsd?? Can anybody help?
Thanx!