HI Thank you so much to provide beta builds of the HEC GeoHMS and GeoRAS for ArcGIS 10.1!! I didn't work yet with those, I will document bugs however there's a problem: I installed ArcHydro and geoRAS but cannot install geoHMS; while the installation is running, an error appears: "ERROR 1901",ATTEMPTING TO READ FROM THE SOURCE INSTALLATION DATABASE: C:\WINDOWS\INSTALLER\6fd77c.msi I tryied to re-download it, or to install on another pc but no way Of course, the Setup10_Beta is not suitable for ArcGis 10.1, since it is for 10.0 what can I do?? thank you again, sincerly This will be a great tool - I have the same Error 1901 issue with my computer. Not sure if this will clarify anything, but we're using ArcGIS 10.1 with Windows 7 OS. Thank you for your help -
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