Schema Valdiation error

[nepo]

I try to validate a complex schema using XSD and I get a series of errors of the following format:

Validation Error:'http://xml.msdw.com/ns/mdco/data/1.0:tradeSymbol' cannot be a member of substitution group with head element 'http://xml.msdw.com/ns/mdco/xml/2.0:abstractIdentifier'.
An error occurred at file:///c:/mdco_data_1.0.xsd, (48, 3). Severity:Error

This schema was generated with XML Spy and no validation error were generater there.
How shall I interpret this error - a violation of the XML Schema spec or a problem with the XSD.EXE?
I am currently running on version 1.1 of the .NET Framework (v1.1.4322 to be more precise)

Thank you for your help

[Priscilla Walmsley]

Hi,

Is the type of tradeSymbol derived from the type of abstractIdentifier (or
do they have the same type?). That must be the case in order to use
substitution groups.

In general, I wouldn't necessarily assume that a schema is valid because
XMLSpy doesn't raise any errors. There are a number of fine points of XML
Schema that XMLSpy doesn't implement 100% correctly.

Hope that helps,
Priscilla
------------------------------------------------------------------
Priscilla Walmsley
Author, Definitive XML Schema / XML in Office 2003
http://www.datypic.com
------------------------------------------------------------------

[Priscilla Walmsley]

Hi,

Is the type of tradeSymbol derived from the type of abstractIdentifier (or
do they have the same type?). That must be the case in order to use
substitution groups.

In general, I wouldn't necessarily assume that a schema is valid because
XMLSpy doesn't raise any errors. There are a number of fine points of XML
Schema that XMLSpy doesn't implement 100% correctly.

Hope that helps,
Priscilla
------------------------------------------------------------------
Priscilla Walmsley
Author, Definitive XML Schema / XML in Office 2003
http://www.datypic.com
------------------------------------------------------------------