Error when DEM reconditioning

Question

I am trying to use the DEM Reconditioning tool in ArcMap 10.0. Every time I have tried to use it I get the error "Object reference not set to an instance of an object." I have used different data from all over, and I always get the same error message. At first the coordinate systems for the stream file and the DEM file weren't the same, and I thought that was the source of the error. Now I have data that has the same coordinate system but the error keeps coming. Does anyone know what causes this error?

Thank you

IndiaAdmin01 · Answer

This thread is a but old now but i am running into this same issue with ArcMap 10.8.1. I have tried re-downloading hydrotools from https://downloads.esri.com/archydro/archydro/Setup/10.8/10.8.0.33/

and my DEM comes from SRTM (.hgt) files. The Solution proposed by christine seems to take me back to an older version of Hydrotools and I also tried Mark's solution and ensured my streams layer (downloaded from WWF hydrosheds) has unique study id's.

Any help would be greatly appreciated

Screen Shot 2021-06-01 at 8.16.33 AM.png

MarkBoucher · Answer

See: http://forums.arcgis.com/threads/68360-Error-in-DEM-Reconditioning-in-Arc-hydro-10?daysprune=365

It could be your agree stream layer does not have an Object ID. Put it in a geodatabase. This will give the features an object ID.

miguelangel · Answer

i will do that next week i need to finish and i get back to arc 10 tnx