IAuthenticationManager does not have an accessible constructor

Questions
1

Hi,

I’m getting an issue after integration Okta in my ASP.NET (framework 4.6.1) application from my home controller.

Error: The type IAuthenticationManager does not have an accessible constructor.

I’ve added these lines in UnityConfig.RegisterComponents method

 container.RegisterType<IAuthenticationManager>(new InjectionFactory(o => HttpContext.Current.GetOwinContext().Authentication));
            container.RegisterType<IAuthenticationClient>(new InjectionFactory(o => new AuthenticationClient(
                new OktaClientConfiguration()
                {
                    OktaDomain = ConfigurationManager.AppSettings["okta:OktaDomain"],
                    Token = ConfigurationManager.AppSettings["okta:Token"],
                })));

and calling this funciton from Global.cs -> Application_Start method.

Can anybody help me with this, please?