error while uploading schema

>
> Hello Everyone,
>
> I am trying to upload an XML schema with orbeon Form Builder and  
> getting
> this error:
>
> Available Schema Types Your schema does not seem to contain simple  
> types.
> You won't be able to select types from this schema for validation.
>
> I am using a very simple schema but still it gives out this error  
> and does
> not upload it.
>
> <?xml version="1.0" encoding="UTF-8"?>
> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"
> elementFormDefault="qualified" attributeFormDefault="unqualified">
> <xs:element name="Customer">
> <xs:complexType>
> <xs:sequence>
> <xs:element name="FirstName" type="xs:string"/>
> <xs:element name="LastName" type="xs:string"/>
> </xs:sequence>
> </xs:complexType>
> </xs:element>
> </xs:schema>
>
>
> Any help would greatly be appreciated.
>
> thanks,
> Altaf.
> --
> View this message in context: http://www.nabble.com/error-while-uploading-schema-tp21857299p21857299.html
> Sent from the ObjectWeb OPS - Users mailing list archive at  
> Nabble.com.
>
>
> --
> You receive this message as a subscriber of the [hidden email]  
> mailing list.
> To unsubscribe: mailto:[hidden email]
> For general help: mailto:[hidden email]?subject=help
> OW2 mailing lists service home page: http://www.ow2.org/wws