Error in executing grid expression

Discussion created by mbbrady on Jul 27, 2011
Latest reply on Apr 4, 2014 by jetilton

I'm working with HEC GeoHMS. I'm attempting to run the "longest flowpath" tool. I select two grids: flow direction and raw dem and the subbasins feature class.

When I select OK, I get the following message:
[INDENT]"Error HRESULT E_FAIL has been returned from a call to a COM Component." [/INDENT]

When I attempt to run the tool again, I get the following message:
[INDENT]"ERROR 010067: Error in Executing Grid Expression". [/INDENT]

I've attached the error messages as a Word file.

Does anyone know why I might be getting these error messages? I'd appreciate any help with this.