https://community.esri.com/t5/arcgis-pro-questions/arc-hydro-pro-identify-flat-areas-error/m-p/1572667#M91645 <P>I had the same issue when I was trying to use the tool. I found that line 383 of identifyflatareas.py called&nbsp;<SPAN>arcpy</SPAN><SPAN>.management.GetRasterProperties with the </SPAN><SPAN>ALLNODATA option. This function was returning an error when using the ALLNODATA option. </SPAN></P><P><SPAN>I remarked the line and added a line that set the value of bvalidroi to 0.</SPAN></P><P><SPAN>The Identify Flat Areas tool ran properly. I believe this is just checking to see that there are flat areas present in the out_ifraster before proceeding with the rest of the tool. I knew I had flat areas present so this was not a problem for me.</SPAN></P> Sun, 05 Jan 2025 18:27:07 GMT JeffreyMitzelfelt 2025-01-05T18:27:07Z https://community.esri.com/t5/arcgis-pro-questions/arc-hydro-pro-identify-flat-areas-error/m-p/1494483#M84712 <P>Hi,&nbsp;</P><P>I'm in the process of creating flood depth rasters for a DEM with the goal of using the rasters to run the Flood Impact Analysis Solution on ArcGIS. Every time I attempt to run the "identify flat areas" tool, using the DEM data, I receive the following error message:&nbsp;<span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="ArcGIS Error.png" style="width: 999px;"><img src="https://community.esri.com/t5/image/serverpage/image-id/107321iAE52979B4C11CBD3/image-size/large?v=v2&amp;px=999" role="button" title="ArcGIS Error.png" alt="ArcGIS Error.png" /></span></P><P>I was wondering if anyone had any insight to what might be causing the tool to fail. I was concerned that it might be due to the size of the dataset as I'm looking at elevation data for an entire county.&nbsp;</P><P>&nbsp;</P><P>Thank you so much!</P> Tue, 18 Jun 2024 16:49:38 GMT https://community.esri.com/t5/arcgis-pro-questions/arc-hydro-pro-identify-flat-areas-error/m-p/1494483#M84712 MollyMuscato 2024-06-18T16:49:38Z https://community.esri.com/t5/arcgis-pro-questions/arc-hydro-pro-identify-flat-areas-error/m-p/1572667#M91645 <P>I had the same issue when I was trying to use the tool. I found that line 383 of identifyflatareas.py called&nbsp;<SPAN>arcpy</SPAN><SPAN>.management.GetRasterProperties with the </SPAN><SPAN>ALLNODATA option. This function was returning an error when using the ALLNODATA option. </SPAN></P><P><SPAN>I remarked the line and added a line that set the value of bvalidroi to 0.</SPAN></P><P><SPAN>The Identify Flat Areas tool ran properly. I believe this is just checking to see that there are flat areas present in the out_ifraster before proceeding with the rest of the tool. I knew I had flat areas present so this was not a problem for me.</SPAN></P> Sun, 05 Jan 2025 18:27:07 GMT https://community.esri.com/t5/arcgis-pro-questions/arc-hydro-pro-identify-flat-areas-error/m-p/1572667#M91645 JeffreyMitzelfelt 2025-01-05T18:27:07Z