I'm a GIS novice, so I apologize in advance if my question has an obvious answer. I looked around in the forums and saw somewhat similar discussions, but nothing that appeared to answer my question directly.
I'm attempting a revision to my older HEC-RAS model. I'm going through the steps of updating my centerlines, banks, xscutlines, etc. in HEC-Geo-Ras (version 10.1) in ArcMap (version 10.1). I did a test run of this in a very small area of my watershed, with successful results.
However, when I attempted to expand this to the entire watershed, I've run into a brick wall. Specifically, when I attempt the command XS CUTLINE ATTRIBUTES-> STATIONING, I receive the following error message:
"Problem with XS OID 0
-2147220990, The index passed was not within the valid range."
Any ideas on what could be tripping this process up? More specifically, do the terms "XS OID 0" and "-2147220990" have meaning to specific points in the watershed that area problems?
Thanks in advance,