I\'m following this tutorial step by step
http://www.asp.net/signalr/overview/signalr-20/getting-started-with-signalr-20/tutorial-signalr-20-self-host
And I\
In my case, I had two projects:
MyProj.MvcWeb
(an MVC application that referenced Microsoft.Owin.Security 3.0.0
)MyProj.Data.Entities
(a class library that referenced Microsoft.Owin.Security 2.1.0
; not sure how this happened)Upgrading Microsoft.Owin.Security
from 2.1.0
to 3.0.0
in the MyProj.Data.Entities
project fixed the issue for me.