[ccnet-user] Unable to build email message

[OBones]

Hello,

I have seen issue 1658 (http://jira.public.thoughtworks.org/browse/
CCNET-1658) and have the exact same error message.
The comment says that the correct config is

    <xslFiles>
       <file>xsl\header.xsl</file>
       <file>xsl\compile.xsl</file>
       <file>xsl\unittests.xsl</file>
       <file>xsl\modifications.xsl</file>
    </xslFiles>

Does this mean one has to use those XSL files and only those in that
order?
I'm not using unittests, so I removed the line about it, and I'm using
msbuild so I replaced compile.xsl with compile-msbuild.xsl
Is that why I get the error?

Regards
Olivier