Trying to make a release build I got such an error:
Error: NUTC3054:The generic parameters are too complex. This may be an indication of infinite generic expansion which is not currently supported while loading type 'NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlPoint>>>>>>>>>>>>>'. while loading type 'Npgsql.TypeHandlers.RangeHandler1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlPoint>>>>>>>>>>>>>'. while compiling method 'instance Npgsql.TypeHandler Npgsql.TypeHandler1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlRange1<NpgsqlTypes.NpgsqlPoint>>>>>>>>>>>>>.CreateRangeHandler(Npgsql.PostgresTypes.PostgresType)'.
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It works fine in Debug mode.