I try to include some xml documents to another one and valide them.
I get 'invalid content starting with element "xi:include".' error message from xml plugin at
pointsample.xml line 6.
I can't find what is wrong.


Here is my files:
sample.xsd:
<?xml version="1.0"?>
<schema
xmlns="http://www.w3.org/2001/XMLSchema"
xmlns:B="http://www.sample.com/Sample"
targetNamespace="http://www.sample.com/Sample"
xmlns:xi="http://www.w3.org/2001/XInclude"
elementFormDefault="qualified">
<element name="point" type="B:Point"/>
<complexType name="Point">
<sequence>
<element name="position" type="B:XYPosition"/>
<element name="colour" type="B:Colour"/>
</sequence>
</complexType>

<complexType name="XYPosition">
<sequence>
<element name="x-position" type="integer"/>
<element name="y-position" type="integer"/>
</sequence>
</complexType>

<complexType name="Colour">
<choice>
<element name="colour-index" type="integer"/>
<element name="absolute-colour" type="string"/>
</choice>
</complexType>

</schema>

position.xml:

<position>
<x-position>5</x-position>
<y-position>5</y-position>
</position>

colour.xml:

<colour>
<colour-index>5</colour-index>
</colour>

pointsample.xml:
<?xml version="1.0" encoding="UTF-8"?>
<point
xmlns="http://www.sample.com/Sample"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.sample.com/Sample sample.xsd"
xmlns:xi="http://www.w3.org/2001/XInclude">
<xi:include href="point.xml"/>
<xi:include href="colour.xml"/>
</point>