Error CookieAuthenticationOptions upgrade asp.net core 1.1 to 2.0

[balasratran]

I want to define area admin to set CookieAuthenticationOptions.
Please help me
app.UseWhen(x => x.Request.Path.Value.StartsWith("/Admin"), p =>
{
p.UseCookieAuthentication(new CookieAuthenticationOptions()
{
LoginPath = new PathString("/Admin/Account/Login/"),
AccessDeniedPath = new PathString("/Admin/Account/Forbidden/"),
AutomaticAuthenticate = true,
AutomaticChallenge = true
});
});

[Tratcher]

aspnet/Announcements#232

[Tratcher]

aspnet/Security#1190 (comment)

[aspnet-hello]

This issue is being closed because it has not been updated in 3 months.

We apologize if this causes any inconvenience. We ask that if you are still encountering this issue, please log a new issue with updated information and we will investigate.