topic working on HEC-GeoRAS in ArcObjects SDK Questions https://community.esri.com/t5/arcobjects-sdk-questions/working-on-hec-georas/m-p/290083#M7528 <HTML><HEAD></HEAD><BODY><P>While trying to generate flood map using HEC-GeoRAS for the data I imported from HEC-RAS, the following error occurs. Can anyone help me how to resolve and continue?</P><P></P><P><SPAN style="color: #e23d39;">Failed to create water surface tin:</SPAN></P><P><SPAN style="color: #e23d39;">Runtime.InteropServices.COMException (0x80040833): TIN internal process error.</SPAN></P><P><SPAN style="color: #e23d39;">At ESRI.ArcGIS.Geodatabase.TinClass.AddFromFeatureClass(IFeatureClass PFeatureClass, IQueryFilter, IField pHeightField, IField p TagvalueField, esri TinSurface Type Type, Object&amp; pbUseShapeZ)</SPAN></P><P><SPAN style="color: #e23d39;">At HECGeoRAS. clsMFloodWaterSurface.CreateWSTin(FeatureClass pSrcFC, IFeatureClass pClipFC, IFeatureClass pWorkFC, String s TINName, String sProfileName)</SPAN></P><P></P><P><SPAN style="color: #303030;">Best,</SPAN></P><P><SPAN style="color: #303030;">Yared</SPAN></P></BODY></HTML> Tue, 10 Feb 2015 15:10:12 GMT YaredMichael 2015-02-10T15:10:12Z working on HEC-GeoRAS https://community.esri.com/t5/arcobjects-sdk-questions/working-on-hec-georas/m-p/290083#M7528 <HTML><HEAD></HEAD><BODY><P>While trying to generate flood map using HEC-GeoRAS for the data I imported from HEC-RAS, the following error occurs. Can anyone help me how to resolve and continue?</P><P></P><P><SPAN style="color: #e23d39;">Failed to create water surface tin:</SPAN></P><P><SPAN style="color: #e23d39;">Runtime.InteropServices.COMException (0x80040833): TIN internal process error.</SPAN></P><P><SPAN style="color: #e23d39;">At ESRI.ArcGIS.Geodatabase.TinClass.AddFromFeatureClass(IFeatureClass PFeatureClass, IQueryFilter, IField pHeightField, IField p TagvalueField, esri TinSurface Type Type, Object&amp; pbUseShapeZ)</SPAN></P><P><SPAN style="color: #e23d39;">At HECGeoRAS. clsMFloodWaterSurface.CreateWSTin(FeatureClass pSrcFC, IFeatureClass pClipFC, IFeatureClass pWorkFC, String s TINName, String sProfileName)</SPAN></P><P></P><P><SPAN style="color: #303030;">Best,</SPAN></P><P><SPAN style="color: #303030;">Yared</SPAN></P></BODY></HTML> Tue, 10 Feb 2015 15:10:12 GMT https://community.esri.com/t5/arcobjects-sdk-questions/working-on-hec-georas/m-p/290083#M7528 YaredMichael 2015-02-10T15:10:12Z