arc hydro > longest flow path tool

[JimmyClark]

Anybody having any problems with the longest flow path tool in Arc 10 / Arc Hydro 2.0?  It just seems to run forever.  Basin and fdr both are in projected coordinate system.

Thanks

JMC

[JeffreyStevens]

I also am having issues with the Longest Flow Path in ArcHydro.  I keep getting a System.InvalidCastException: Conversion from string "" to type 'Integer' is not valid. ----> System.FormatException...

I have attached a screenshot of the complete error message:

[ATTACH=CONFIG]11952[/ATTACH]

Any help would be greatly appreciated.:confused:

Thanks.
Jeff