Just ran into this problem last week, and couldn't find any information about this online. The only MSDN forum solution I can find only suggests uninstall and reinstall SQL Server, which I did and still failed! And I finally found the solution of...

I just found 2 great white papers that briefly touches on the new features in WCF and WF 4.0 from a developer perspective. Check them out! WF 4.0 http://msdn.microsoft.com/en-us/library/ee342461.aspx WCF 4.0 http://msdn.microsoft.com/en...