SignalR 2.0 error: Could not load file or assembly Microsoft.Owin.Security

Question

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\

Answer 1

This assembly does not match what was requested that is why you get this error. check the Microsoft.Owin.Security version in the GAC. Also see here

Answer 2

Ok I've solved it.

I had to upgrade my Microsoft.Owin.Security package to 2.1.0 with this command

Install-Package Microsoft.Owin.Security -Version 2.1.0

And modify the bindings in my App.config like this

<assemblyIdentity name="Microsoft.Owin.Security" publicKeyToken="31bf3856ad364e35" culture="neutral" />
<bindingRedirect oldVersion="0.0.0.0-2.1.0.0" newVersion="2.1.0.0" />

Answer 3

in my case, it turned out to be IIS express issue. Once i changed debug to Local IIS, error was gone.