Cannot use Server.MapPath
you can try using this System.Web.HttpContext.Current.Server.MapPath(path); or use HostingEnvironment.MapPath System.Web.Hosting.HostingEnvironment.MapPath(path);
you can try using this System.Web.HttpContext.Current.Server.MapPath(path); or use HostingEnvironment.MapPath System.Web.Hosting.HostingEnvironment.MapPath(path);