Inner join is breaking SSRS - sql

Question

I have a query:
SELECT systemuser.fullname AS 'fullname',
usersettings.calendartype AS 'calendartype',
usersettings.uilanguageid AS 'uilanguageid'
FROM filteredsystemuser AS systemuser
INNER JOIN filteredusersettings AS usersettings
ON systemuser.systemuserid = usersettings.systemuserid
inner join vfinduserguid vfg
on systemuser.systemuserid = vfg.userguid
which I have converted to FetchXML:
<fetch mapping="logical">
<entity name="systemuser">
<attribute name="fullname" alias="fullname" />
<link-entity name="usersettings" to="systemuserid" from="systemuserid" alias="usersettings" link-type="inner">
<attribute name="calendartype" alias="calendartype" />
<attribute name="uilanguageid" alias="uilanguageid" />
<link-entity name="vfinduserguid" to="systemuserid" from="userguid" alias="vfg" link-type="inner" />
</link-entity>
</entity>
</fetch>
using this service: http://www.sql2fetchxml.com/
When I try to use this FEtchXML within SSRS, I'm getting:
The specific record type does not exist in Microsoft Dynamics CRM.
What am I doing wrong?
Please note that it is the last join (vfinduserguid) that is breaking it. This object is a view.

Answer 1

Here is fetch to get the current user:
<fetch version="1.0" output-format="xml-platform"
mapping="logical" distinct="false">
<entity name="systemuser">
<attribute name="fullname" />
<attribute name="systemuserid" />
<order attribute="fullname" descending="false" />
<filter type="and">
<condition attribute="systemuserid"
operator="eq-userid" />
</filter>
</entity>
</fetch>
http://crmtipoftheday.com/2014/01/09/reflecting-current-user-ssrs/