How to build a project containing Reporting Service project

Follow this link to msdn forum: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=304374&SiteID=1

Solution file warning MSB4122: Scanning project dependencies for project "TestProject\TestProject.rptproj" failed. The default XML namespace of the project must be the MSBuild XML namespace. If the project is authored in the MSBuild 2003 format, please add xmlns="http://schemas.microsoft.com/developer/msbuild/2003" to the element. If the project has been authored in the old 1.0 or 1.2 format, please convert it to MSBuild 2003 format.

This error message appears while trying to build a team build on TFS.
In order to perform Code Analysis on managed binaries, MSBuild needs to launch FxCop. MSBuild is unable to locate the FxCop binaries. Make sure Visual Studio Team Edition for Software Developers or Visual Studio Team Suite is installed and run MSBuild from within the "Visual Studio Command Prompt" or specify the path to FxCop by setting the FXCOPDIR environment variable.

This means you have to install some version of VSTS on the Build Server. Licensing of Team Test, Team Dev, Team Architect and Team Suite are per-user, not per machine. You are free to install another copy on the build machine as long as everyone who uses it is licensed to use the tools.

F-Secure and VSTS doesnt work!!!

After weeks and months of problems with the Team Foundation Server Workgroup Edition and Visual Studio Team System Suite 180 days trial. I finally got my hands the real deal. I thought. Installing TFS for the sevent time on the server, and VSTS developer edition on my laptop. Read to go. But NO! Creating new team site failes! Still! God ¤#¤##%. Nothing to work with. devenv.exe just drops dead. Would you like to send the error message. Yes, but no solution is suggested.

My colleague got a fresh mashine, installs VSTS developer edition. But the same thing happens. Lucky for him, he has something to work with. Shreds of evidens in the event log.

Devenv.exe (VS) has a problem with an F-Secure dll. Shutting down all five or six F-Secure processes EVERYTHING WORKS FINE!!

Could I please send the bill to F-Secure which is more of a virus, then an anti-virus?