Presumably your schema specifies that an NCName type should be used.  An 
NCName shouldn't have a colon in it.  See:

http://www.w3.org/TR/2006/REC-xml-names-20060816/#NT-NCName

I've always considered NCName to stand for No Colon Name, but can't actually 
find anything that says that.  It's an easy way to remember it though.

HTH,

Pete.
--
=============================================
Pete Cordell
Tech-Know-Ware Ltd
for XML Schema to C++ data binding visit
 http://www.tech-know-ware.com/lmx/
 http://www.codalogic.com/lmx/
=============================================

----- Original Message ----- 
From: "Tan Beng Soon" <bengsoon82@h...>
To: <xmlschema-dev@w...>
Sent: Monday, May 14, 2007 9:21 AM
Subject: xsd queries


>
> May i know why do i get this message when i try to scomp the xsd file
>
> string value 'xmlns:Ext' does not match pattern for xs:NCName
>
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From mike@s... Mon May 14 19:47:49 2007
Received: from aji.w3.org ([133.27.