topic Longest flowpath in Water Resources Questions https://community.esri.com/t5/water-resources-questions/longest-flowpath/m-p/418769#M2035 <HTML><HEAD></HEAD><BODY><SPAN>I try do the the longest flowpath. It says completed however i get the folloing error.</SPAN><BR /><BR /><BR /><SPAN> System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component.</SPAN><BR /><SPAN>&nbsp;&nbsp; at ESRI.ArcGIS.GeoAnalyst.RasterConversionOpClass.RasterDataToPointFeatureData(IGeoDataset dataset, IWorkspace pWorkspace, String name)</SPAN><BR /><SPAN>&nbsp;&nbsp; at ESRI.APWR.ApHydro.ArcHydroOp.ComputeLongestFlowpath(ApLayers apLayers, Int32 debug, ITrackCancel&amp; trackcancel, IGPMessages&amp; messages, String&amp; exMessage, IRaster costRaster)</SPAN><BR /><SPAN>Failed to execute (LongestFlowpath).</SPAN><BR /><BR /><SPAN>Anyone knows what is happening?</SPAN></BODY></HTML> Thu, 29 May 2014 15:24:15 GMT ioannissidiris 2014-05-29T15:24:15Z Longest flowpath https://community.esri.com/t5/water-resources-questions/longest-flowpath/m-p/418769#M2035 <HTML><HEAD></HEAD><BODY><SPAN>I try do the the longest flowpath. It says completed however i get the folloing error.</SPAN><BR /><BR /><BR /><SPAN> System.Runtime.InteropServices.COMException (0x80004005): Error HRESULT E_FAIL has been returned from a call to a COM component.</SPAN><BR /><SPAN>&nbsp;&nbsp; at ESRI.ArcGIS.GeoAnalyst.RasterConversionOpClass.RasterDataToPointFeatureData(IGeoDataset dataset, IWorkspace pWorkspace, String name)</SPAN><BR /><SPAN>&nbsp;&nbsp; at ESRI.APWR.ApHydro.ArcHydroOp.ComputeLongestFlowpath(ApLayers apLayers, Int32 debug, ITrackCancel&amp; trackcancel, IGPMessages&amp; messages, String&amp; exMessage, IRaster costRaster)</SPAN><BR /><SPAN>Failed to execute (LongestFlowpath).</SPAN><BR /><BR /><SPAN>Anyone knows what is happening?</SPAN></BODY></HTML> Thu, 29 May 2014 15:24:15 GMT https://community.esri.com/t5/water-resources-questions/longest-flowpath/m-p/418769#M2035 ioannissidiris 2014-05-29T15:24:15Z Re: Longest flowpath https://community.esri.com/t5/water-resources-questions/longest-flowpath/m-p/418770#M2036 <HTML><HEAD></HEAD><BODY><SPAN>Try putting your project on your local drive and not on the network. This will speed up processing and reduce errors. </SPAN><BR /><BR /><SPAN>See link under my signature for other Arc Hydro tips.</SPAN></BODY></HTML> Thu, 29 May 2014 16:13:52 GMT https://community.esri.com/t5/water-resources-questions/longest-flowpath/m-p/418770#M2036 MarkBoucher 2014-05-29T16:13:52Z