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Date: 16.12.2019 9:48:32
Exception type name: System.InvalidOperationException
Message: Последовательность не содержит элементов
StackTrace:    в System.Linq.Enumerable.Single[TSource](IEnumerable`1 source)
   в System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.<GetElementFunction>b__3[TResult](IEnumerable`1 sequence)
   в System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.ExecuteSingle[TResult](IEnumerable`1 query, Expression queryRoot)
   в System.Data.Entity.Core.Objects.ELinq.ObjectQueryProvider.System.Linq.IQueryProvider.Execute[TResult](Expression expression)
   в System.Data.Entity.Internal.Linq.DbQueryProvider.Execute[TResult](Expression expression)
   в System.Linq.Queryable.Single[TSource](IQueryable`1 source, Expression`1 predicate)
   в RAS_v2.Model.UnitSelection_Model.UpdateUnitCatalogInfo(IRefUnit refUnit)

