OKTA Integration with ASP.NET MVC + Serenity

Hi Team,
Good day

Kindly can you please let me know how to Integrate OKTA with ASP.NET MVC application (i.e ASP.NET MVC + Serenity )

.NET Framework Version : 4.5.2

FYI, I tried by Installing the latest OKTA SDK but could not able install due to compatible issues