Sir, I have similar problems, as you mentioned, with DEM Fill. In fact, I am having all these problems while working on the tutorial data as prescribed by ArcHydro itself so I assume the fault is not in the data. I use Windows 8.1 and ArcMap 10.2.2. I do get a feeling that the error may be due to incorrect target location, which I am unable to locate as it is not mentioned clearly for Win 8.1 ( There is no C:/Users/Temp...). Also, I don't understand what " donot store a raster in a geodatabase" means. Can you please help me with this. I get the same error message as Mr. Mallya has with his problems in DEM Reconditioning. Thank you.
... View more