I'm trying to upgrade to Team Foundation Server 2010 and Project Server 2010. After getting TFS 2010 and Project Server 2007 to work with WSS 3.0, I started upgrade to Project Server 2010 which requires update to Sharepoint Server 2010 Enterprise. I installed
pre-requisites and run "stsadm -o preupgradecheck" which passed everything.
When I tried to run the installation I get Setup Warning "A previous installation has been detected with a license type that does not match the install in progress".
I thought that my trial licence for Project Server 2007 stopped this so I completely uninstalled WSS 3.0 and restarted the server but the installation still stops with Upgrade window.
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