When I'm attempting to open any of our projects in TFS 2010 with Microsoft Test Manager 2010, I get the error: The required category 'Microsoft.TestCaseCategory' does not exist for project XXXXXXX.
What is the reason for this error, and what steps can I take to resolve it?
Also, is stackoverflow the right forum for this question? I feel like it's not really a programming question, but it didn't seem to have an obvious home to me