I'm getting use FillSinks by ArcHydroTools but some problems are happen.

I use this code:

import arcpy
import ArcHydroTools
from arcpy import env
ws = env.workspace = r"C:\Users\fractal\Desktop\python_teste\projecaoMiriab2.tif"
output = "C:\Users\fractal\Documents\ArcGIS\Layers"
ArcHydroTools.FillSinks(ws, output)

and this error appears:

arcgisscripting.ExecuteError: Failed to execute. Parameters are not valid. ERROR 000840: The value is not a Raster Layer. Failed to execute (FillSinks).

I already tried to change my raster to format .lyr but it doesn't work.

What should I do?

  • Have you tried creating a Raster Layer from your tiff and using that as the input? arcpy.MakeRasterLayer_management (in_raster, out_rasterlayer, {where_clause}, {envelope}, {band_index})
    – Brian
    Apr 22, 2019 at 17:22
  • I tried and didn't work too.. Apr 22, 2019 at 18:40
  • Don't forget to take the Tour to learn about our focused Q&A format. Please use the edit button to revise your question with any requested clarifications.
    – PolyGeo
    Apr 22, 2019 at 20:15

1 Answer 1


This is a bit wonky:

ws = env.workspace = r"C:\Users\fractal\Desktop\python_teste\projecaoMiriab2.tif"

This code assigns the workspace, and the variable ws, to the folder housing your tif. So this line of code:

ArcHydroTools.FillSinks(ws, output)

tries to run the hydro tool with a folder as an input for a raster.

Your output looks like a folder. If so, add the name of your output raster to the output variable.

output = "C:\Users\fractal\Documents\ArcGIS\Layers\OutRaster"

A raster layer is different from a layer file, which you indicated when mentioning .lyr.

Use Make Raster Layer.

rast = r"C:\Users\fractal\Desktop\python_teste\projecaoMiriab2.tif"
arcpy.MakeRasterLayer_management(rast, "Miri")
ArcHydroTools.FillSinks("Miri", output)
  • I did it and another error appeared.. Apr 22, 2019 at 18:07
  • The another error is: Apr 22, 2019 at 18:07
  • arcgisscripting.ExecuteError: System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component. at ESRI.ArcGIS.Geoprocessing.GeoProcessorClass.Execute(String Name, IVariantArray ipValues, ITrackCancel pTrackCancel) at ESRI.APWR.ApHydro.ArcHydroOp.FillSinks(ApLayers& aplayers, Boolean useIsSink, Boolean fillAll, Double fillLimit, ITrackCancel trackCancel, IGPMessages messages, String& exMessage) in C:\Builds\HydroSolutions\10.2_ArcHydro\Sources\ArcHydroTools\src\ApHydro\ArcHydroOp.vb:line 64688 Failed to execute (FillSinks) Apr 22, 2019 at 18:07
  • I think your output variable is also wrong. I've updated my answer. Apr 22, 2019 at 18:16
  • I changed my output variable like your template and the first error "The value is not a Raster Layer" comes back. Apr 22, 2019 at 18:25

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