DEM Reconditioning tool doesn't recognize input Raster

[Thomastang]

Hi.

When I used DEM Reconditioning tool from Arc hydro toolbox , it doesn't recognize any input raw DEM selected from drop-down list. The error message is "error 000840: The value is not a String". But if I used the same function by selecting  from toolbar, it run properly.  I tried other tools in the toolbox  such as  Level DEM, Fill Sinks,  they allowed to select raw raster from drop-down list and run well.

Does someone  know what wrong with me? 

Appreciate,

Tom

[ClaireRose]

I'm not sure- I'm actually having the opposite occur.

In trying to use any of the ArcHydro Tools from the toolbar, none of them recognize my DEM layers.
However, if I go to the ArcToolbox, and try from the ArcHydro toolbox, all the tools recognize my DEM layers just fine.

Very strange. I'd prefer to use the toolbar, rather than the toolbox, but I suppose it will do for me.

[MarkBoucher]

Try resetting the Processing Extents. Menu: Geoprocessing>Environment Settings>Processing Extents use the rawdem layer or larger extent.