We are trying to add a VB.NET 2010 solution to a Team Foundation Server 2010. When we right-click the solution and select "Add Solution to Source Controll..." it pops-up a message "The file 'sample.vb' cannot be added to the source countrol because the item has no source control mapping. If you choose one of the Ignore options the operation will continue without addint the file."
We wonder what the reason for this is.