Web Performance Test(MVC5)

i'm trying to create a web performance test for my MVC project but i'm getting this error:

could not load type 'Microsoft.VisualStudio.TestTools.WebTesting.SharepointInformation' from assembly 'Microsoft.VisualStudio.QualityTools.WebTestFramework, version = 10.0.0.0, Culture = neutral, PublicKeyToken = b03f5f7f11d50a3a

am i missing an assembly? thank you for your help