System.NotSupportedException: Distinct must be used with Select to identify the field whose distinct values are to be found.
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at MongoDB.Driver.Linq.SelectQuery.ExecuteDistinct(IMongoQuery query) in C:\work\rstam\mongo-csharp-driver\Driver\Linq\Translators\SelectQuery.cs:line 302
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at MongoDB.Driver.Linq.SelectQuery.Execute() in C:\work\rstam\mongo-csharp-driver\Driver\Linq\Translators\SelectQuery.cs:line 137
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at MongoDB.Driver.Linq.MongoQueryProvider.Execute(Expression expression) in C:\work\rstam\mongo-csharp-driver\Driver\Linq\MongoQueryProvider.cs:line 155
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at MongoDB.Driver.Linq.MongoQueryProvider.Execute[TResult](Expression expression) in C:\work\rstam\mongo-csharp-driver\Driver\Linq\MongoQueryProvider.cs:line 131
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at System.Linq.Queryable.Count[TSource](IQueryable`1 source)
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at ConsoleApplication1.Program.Main(String[] _args) in C:\Users\Robert Stam\documents\visual studio 2010\Projects\ConsoleApplication1\ConsoleApplication1\Pro
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gram.cs:line 39
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