[oXygen-user] Some help please with interpreting error messages

Hi All,

At the bottom of this email is an extract from an W3C XML Schema file.  When
I try to validate this XSD I get the following error:

"E src-resolve: Cannot resolve the name 'gml:AbstractGeometryType' to a(n)
'type definition' component."

The line to which this errors refers is:

"  <xs:element name="TM_Object" type="gml:AbstractTimeObjectType"/>"

I'm not quite sure what this error message means.  I have tried looking at
the relevant W3C XML Schema documentation but it doesn't make sense to me.  I
have looked at the temporal.xsd, which is the file referred to by the "gml"
namespace.  The relevant code looks like this:

"
  <complexType name="AbstractTimeObjectType" abstract="true">
    <annotation>
      <documentation xml:lang="en">
      The abstract supertype for temporal objects.
      </documentation>
    </annotation>
    <complexContent>
      <extension base="gml:AbstractGMLType"/>
    </complexContent>
  </complexType>
"

All I can think of is that the complexType name mentioned above should be
"gml:AbstractTimeObjectType" to make it relate to the "gml" namespace.

Can anyone tell me how I must change the code below to get rid of the error?

Thanks in advance for any help.



John


<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://www.isotc211.org/stXML"
xmlns:stXML="http://www.isotc211.org/stXML"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:scXML="http://www.isotc211.org/scXML"
xmlns:gml="http://www.opengis.net/gml" version="0.1">
  <!-- ================================== Imports
================================== -->
  <xs:import namespace="http://www.opengis.net/gml"
schemaLocation="../../GML3.1/GML-3.1.0-Draft-Schemas/base/temporal.xsd"/>
  <xs:import namespace="http://www.isotc211.org/scXML"
schemaLocation="basicTypes.xsd"/>
  <!-- ================================== Classes
================================= -->
  <!--
........................................................................ -->
  <xs:element name="TM_Primitive" type="gml:AbstractTimePrimitiveType"
substitutionGroup="stXML:TM_Object"/>
  <!--
........................................................................ -->
  <xs:complexType name="TM_Primitive_PropertyType">
    <xs:sequence>
      <xs:element ref="gml:_TimePrimitive" minOccurs="0"/>
    </xs:sequence>
    <xs:attributeGroup ref="scXML:ObjectReference"/>
  </xs:complexType>
  <!--
===========================================================================
-->
  <!--
........................................................................ -->
  <xs:element name="TM_Object" type="gml:AbstractTimeObjectType"/>
  <!--
........................................................................ -->
  <xs:complexType name="TM_Object_PropertyType">
    <xs:sequence>
      <xs:element ref="gml:_TimeObject" minOccurs="0"/>
    </xs:sequence>
    <xs:attributeGroup ref="scXML:ObjectReference"/>
  </xs:complexType>