CookieSameSite error

Hello all:

I am trying to work through this sample: Add Login to your ASP.NET Owin application
and am getting an error from Startup.cs: Severity Code Description Project File Line Suppression State
Error CS0117 ‘CookieAuthenticationOptions’ does not contain a definition for ‘CookieSameSite’

Has anyone seen this and/or know a fix. My project is ASP.NET MVC (NOT ASP.NET Core)

Hey there!

In order to handle that the most effectively can I ask you to raise it as a GitHub issue here:

so we can directly discuss it with the quickstart maintainers? Once you have a link to it make sure to share it here so we can ping them. Thank you!