How do you nest complexType elements in an xsd?
Add maxOccurs="unbounded" to the element named "person". It is a sequence of one or more person elements.
Note: write maxOccurs in lowerCamelCase not in lower case
Try this for your XSD:
<?xml version = "1.0"?><xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:element name="people" type="people"/> <xs:complexType name="people"> <xs:sequence> <xs:element name="person" type="person" maxOccurs="unbounded" minOccurs="0"/> </xs:sequence> </xs:complexType> <xs:complexType name="person"> <xs:sequence> <xs:element name="firstname" type="xs:string" maxOccurs="1" minOccurs="1"/> <xs:element name="lastname" type="xs:string" maxOccurs="1" minOccurs="1"/> </xs:sequence> </xs:complexType></xs:schema>