Dear Mr. Boucher,
I encountered the same error (a shorter message, but same HRESULT E_FAIL error) when I wanted to create catchment polygons from my catchments. (input: cat, output:Catchment)
and I tried my data with another computer that had ArcGIS 10.1 and it worked without a hassle! (I was working with 10.2 when it didn't work)
Just wanted to put this out here.
Also , i have a question regarding AgreeDEM. Although, I have been doing AgreeDEM for my data, I havent really understood how to figure out Smooth and Sharp drop/raise. When I am given a set of data, how do I figure that out? I usually use 2,3 or 5 for my buffer cell size; but for smooth and sharp drop/raise, I am not sure what to do. I use 0.5-1 for smooth and 5-10 for sharp, and my reasons are that I am working in Florida region, and it is a flat terrain. I am not sure if I am using the right factors.
I know that it is said, I can do trial and error and see the results and change the factors, but since there are 3 different factors, it will take a lot of trails to really understand the effect of each factor.
Any thoughts on that?!
Thanks