Adding a complex projection to select distinct values

Summary

I am trying to add a complex projection to reduce the amount of rows I'm returning. The complex projection is showing 'The source is valid', however when running the export TCC it is erring.

Content

Complex Projection:

<quer:projection id="Email" alias="EmailDistinct" xmlns:quer="http://www.taleo.com/ws/integration/query"&gt;

<quer:query projectedClass="Candidate" preventDuplicates="true">

<quer:projections>

<quer:projection alias="subQuery">

<quer:field path="EmailAddress"/>

</quer:projection>

</quer:projections>

</quer:query>

</quer:projection>

 

Error Detail:
=============
Code: soapstripper.parser.sax
Description: A SAX parsing error occured during the removal of the SOAP envelope.
Reason: Content is not allowed in prolog.