Hi,
I'm getting this error when validating my xml:

"A schema cannot contain two global components with the same name"

Here is the schema:

<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" attributeFormDefault="unqualified">
  <xs:element name="chartUrl"/>
  <xs:element name="total" type="xs:double"/>
  <xs:element name="responseText" type="xs:string"/>
  <xs:element name="bud02Out">
    <xs:complexType>
      <xs:all>
        <xs:element ref="chartUrl"/>
        <xs:element ref="total" minOccurs="0"/>
        <xs:element ref="responseText" minOccurs="0"/>
      </xs:all>
    </xs:complexType>
  </xs:element>
</xs:schema>

XML Spy does not complain when I save the schema file, but when I run an xml document that conforms to this schema through a validating parser, I get the error above. Any suggestions?

Here is code that creates the validating parser (java):

SAXBuilder builder = new SAXBuilder("org.apache.xerces.parsers.SAXParser", true);

builder.setFeature("http://apache.org/xml/features/validation/schema", true);
builder.setFeature("http://xml.org/sax/features/validation", true);
builder.setProperty("http://apache.org/xml/properties/schema/external-noNamespaceSchemaLocation",
            "file:///" + Constants.SCHEMA_FOLDER + schemaFilename);

TIA,
Brian Barnett

The schema seems perfectly OK, and it validates fine with Saxon. You haven't shown your source document. Perhaps it's a problem of trying to load the same schema twice into the cache - that would make it a Xerces-specific problem.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference