The parameters dictionary contains a null entry for parameter 'meetingTemplateType' of non-nullable type 'PrimeGov.LegislativeManagement.Core.Data.MeetingTemplateTypes' for method 'System.Threading.Tasks.Task`1[System.Web.Mvc.FileResult] ItemWithTemplateType(Int32, PrimeGov.LegislativeManagement.Core.Data.MeetingTemplateTypes, Int32)' in 'PrimeGov.LegislativeManagement.Web.Controllers.MeetingsController'. An optional parameter must be a reference type, a nullable type, or be declared as an optional parameter. Parameter name: parameters