I have a problem with using Arc Hydro. I tried to follow these steps:

  1. App utilities> Set target locations

    • Raster Data: C:users\seabell\Deskop\weekdata4\

    • Vector Data: C:users\seabell\Deskop\weekdata4\untitled.gdb

  2. Fill sinks
  3. Flow direction
  4. Flow accumulation
  5. Stream definition: I gave the number in area
  6. Stream segmentation
  7. Catchment grid deliniation
  8. Catchment polygon processing

I receive an error which is:

Error HRESLT E_FAIL has been returned from a call to a om Component

Can anyone help me?

  • What step did you hit that -- I assume 8? As a general comment, I found it was less buggy to use ArcHydro via the toolbox than the menu bar; that may or may not get you to the next step! – Erica Jan 30 '15 at 13:04
  • See this video may help you in your problem youtube.com/watch?v=DK34C7QScRU&feature=youtu.be – bassim.s.shama Dec 20 '16 at 3:38
  • I have had same problem but I think I solved. I tried over and over.. 1- My dem is "geo-tiff" 2- folder location: in root, direct local disc C: or D: exaple C:\a\ 3- Folder and file names are shortly. exaple mxd name is "hydro", dem name is "DEM", not two word, short and one word, especially no gap. 4- When I describe "Set target locations for HydroConfig" raster data is ok. but, if vector data is "mdb" , It was not. I described vector data "gdb" (File Geodatabase) good luck – IBRAHIM GEDIK Feb 15 at 19:51

It appears that this is a fairly common error encountered when ArcHydro is run with data between the network and the local C: drive. See this site for further details:


The solution seems to be in where the data are stored.

  • As stated above, it could be a data storage issue. I used these tools pretty extensively at my last job, and the data storage was definitely key. I would suggest putting all of the data in a single .gdb – Tangnar Jan 30 '15 at 14:29
  • Thanks for the advice. I deleted all my file and I did whole process again and I got the results. But when I look my vector data, projection is undefined but when I started to delineate, projection has already defined. i don`t understand that why I need to include projection again? – seabell Jan 30 '15 at 16:50

Solution: This is done using 10.6, I am not sure if it works for other version. Open toolbox => Arc Hydro Tools Python => Terrain Preprocessing => Catchment Polygon Processing (or whatever raster to polygon you are choosing).

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