I cannot get ArcHydro to run Reconditioning - says object reference not set to an instance of an object. So, not finding what that refers to, I skipped that and used the sequence of Terrain Preprocessing functions up to Drainage Line Delineation, but that won't run either, giving a message that a grid code is dropped. Does someone know how to get past these roadblocks?

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    Could you add some screen shots? – whyzar Apr 11 '16 at 19:36

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