Base class 1.3 causing issue with specflow nunit

[mathisyoung]

Error when added base class plugin with specflow in VS 2015. I have tried removing one of the unitTestProvider tag and when I build same issue. I alsocheck to make sure the reference in the project techtalk DLL local copy is set =true. Can you provide some other Idea on what I might need to check?

Thanks

Error:

error Generation error: Could not load file or assembly 'TechTalk.SpecFlow, Version=1.9.0.77, Culture=neutral, PublicKeyToken=0778194805d6db41' or one of its dependencies. The system cannot find the file specified.