We are using an industry standard XML schema and we are trying to use Castor to generate XML to Java objects. We are getting the following error : SchemaException:An element declaration with the given name TransactionSetPurposeCode already exists Part of our schema looks like: <xs:element name="BeginningSegmentForTradingPartnerProfile"> <xs:annotation> <xs:documentation>BTP Segment</xs:documentation> </xs:annotation> <xs:complexType> <xs:sequence> <xs:element ref="TransactionSetPurposeCode"/> <xs:element ref="ReferenceIdentification"/> <xs:element ref="TransactionTypeCode"/> <xs:element ref="TransactionSetPurposeCode" minOccurs="0"/> > <xs:element ref="ReferenceIdentification" > minOccurs="0"/> > </xs:sequence> > </xs:complexType> > </xs:element> > > I guess the Castor program is complaing about element > TransactionSetPurposeCode being referred twice. But is this an invalid > schema or this is a Castor limitation? This schema is also an industry > standard and not a home grown one. We need to find out about it as soon as > possible, because if this is a Castor problem, we need to think about a > different technology and we have a tight deadline... > > Really appreciate your help.