GeoHMS -- Error Generating Project

HECGeoHMS9
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errorException from HRESULT: 0x80040215


WshDelineateFromPointAndAggWsh
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System.NullReferenceException: the input string is not a geographic or projected coordinate system
at ESRI.ArcGIS.Geometry.IRelationalOperator.Equals(IGeometry other)
at HECGeoHMS9.HMSFunctions.WshDelineateFromPointAndAggWsh(IWorkspace pWS, IGeoDataset pGeoFlowDir, IGeoDataset pGeoStreamGrid, IPoint& pPoint, IMxApplication pApp, IFeatureClass pWshFC, IFeatureClass pAggWshFC, String sWshIDFld, String sAggWshIDFld, Double dSnapDist)


Generate Project
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Problem delineating watershed


I am using ArcGIS 9.3.1 and GeoHMS 4.2.93.22

Any ideas what may be causing this issue?

n0tenuff 
Well I am not sure what my error was. However, I had all my datasets set to an Albers Equal Area Conic USGS projection. I went ahead and changed my datasets to a different projection (NAD 83 UTM 15N) and tried to regenerate my project. Sure enough, I was able to complete the project and generate the HMS model schematic and associated files.
Thanks.




http://www.bossintl.com/forums/hec-hms/16636-geohms-error-generating-project.html