Could not load type RestSharp.IRestResponse

I am getting the below error, could someone help me how to resolve this error? 
  System.TypeLoadException : Could not load type 'RestSharp.IRestResponse' from assembly 'RestSharp, Version=111.2.0.0, Culture=neutral, PublicKeyToken=598062e77f915f75'

I am using .net framework 4.8
Restsharp Version = 111.2.0.0

Thanks.