Team Foundation error in Microsoft Visual Studio

Hi,
I am getting the following error message with Visual Studio 2010 TFS Client and often get this problem related to TFS operations. I have tried to reinstall the VS 2010 after getting this annoying error message but still the problem persists. I have repaired the application to fix this issue but I need your assistance to resolve the problem. I would be grateful to you. Thanks.

Microsoft Visual Studio
Team Foundation Error
Method not found ‘System. String
Microsoft.TeamFoundation.Build.Workflow. ProcessParameterError.get_ParameterValue()’.
