Entity framework : SqlQuery casting returned result

I have a stored procedure that returns a selection of columns from couples of tables.

So I created this class :

public class StoredProcedureResult 
    {
        public int hours_id { get; set; }
        public DateTime TimeSheet_Date { get; set; }
        public double? Hour_Number { get; set; }
        public string Hour_Note { get; set; }
        public string Task_Ticket_Libelle { get; set; }
        public int Task_Ticket_Id { get; set; }
        public int Project_Id { get; set; }
        public bool? Is_Task { get; set; }
        public int User_Id { get; set; }
        public string Project_Name { get; set; }
        public string Phase_Name { get; set; }
        public string User_Name { get; set; }
        public double? Hour_Count_All { get; set; }
        public string Client_Name { get; set; }
        public string Command_Type { get; set; }
        public string Commmand_Etape { get; set; }
        public string Code_Affaire { get; set; }

}

the problem is when I called the SqlQuery method the result's type is not directly converted to StoredProcedureResult even the returned columns has the same names and types as the class's properties :

var lst = context.Database.SqlQuery<StoredProcedureResult>(builder.ToString()).ToList();

Even I tried this I get the same exception

 var lst = context.Database.SqlQuery<object>(builder.ToString()).ToList();
                List<StoredProcedureResult> list = new List<StoredProcedureResult>();
                foreach (object item in lst)
                {
                    StoredProcedureResult typed = (StoredProcedureResult)item;
                    list.Add(typed);
                }

So I need to know how can I fix this issue?