topic DEM Reconditioning error in 911 GIS Questions https://community.esri.com/t5/911-gis-questions/dem-reconditioning-error/m-p/771282#M131 <HTML><HEAD></HEAD><BODY><P>I have tried DEM reconditioning but ended up with this error every time</P><P>System.NullReferenceException: Object reference not set to an instance of an object.<BR />at ESRI.APWR.ApHydro.ArcHydroOp.DEMReconditioningGP(ApLayers apLayers, Double numCellsBuff, Double sharpDrop, Double smoothDrop, Boolean raiseNegative, Boolean bUsingStreamGridInput, ITrackCancel&amp; trackcancel, IGPMessages&amp; messages, String&amp; exMessage) in C:\Builds\HydroSolutions\10.2_ArcHydro\Sources\ArcHydroTools\src\ApHydro\ArcHydroOp.vb:line 62462<BR />Failed to execute (DEMReconditioning)</P><P>Any HELP?</P></BODY></HTML> Fri, 18 Jan 2019 19:29:38 GMT FELIXKASITI 2019-01-18T19:29:38Z DEM Reconditioning error https://community.esri.com/t5/911-gis-questions/dem-reconditioning-error/m-p/771282#M131 <HTML><HEAD></HEAD><BODY><P>I have tried DEM reconditioning but ended up with this error every time</P><P>System.NullReferenceException: Object reference not set to an instance of an object.<BR />at ESRI.APWR.ApHydro.ArcHydroOp.DEMReconditioningGP(ApLayers apLayers, Double numCellsBuff, Double sharpDrop, Double smoothDrop, Boolean raiseNegative, Boolean bUsingStreamGridInput, ITrackCancel&amp; trackcancel, IGPMessages&amp; messages, String&amp; exMessage) in C:\Builds\HydroSolutions\10.2_ArcHydro\Sources\ArcHydroTools\src\ApHydro\ArcHydroOp.vb:line 62462<BR />Failed to execute (DEMReconditioning)</P><P>Any HELP?</P></BODY></HTML> Fri, 18 Jan 2019 19:29:38 GMT https://community.esri.com/t5/911-gis-questions/dem-reconditioning-error/m-p/771282#M131 FELIXKASITI 2019-01-18T19:29:38Z