Hec Georas For — Arcgis 108 Upd

To avoid the common "toolbar not appearing" or "COM object" errors, you must install the water-resource toolset in a specific sequence:

Important: The installation file is typically named HEC-GeoRAS_1021_Setup.exe . There is no separate "upd" file for 108 beyond this; 10.2.1 is the cumulative update for the 10.2 series. hec georas for arcgis 108 upd

Esri officially ended support for ArcMap 10.8.2 in March 2024. While you can still use it, no future security patches or OS compatibility fixes will arrive. Windows 12 (expected 2026) will likely break ArcMap entirely. To avoid the common "toolbar not appearing" or