topic Hec GeoHMS Longest Flowpath in ArcGIS Solutions Questions https://community.esri.com/t5/arcgis-solutions-questions/hec-geohms-longest-flowpath/m-p/94525#M126 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I'm trying to run the Longest Flowpath tool in the Hec GeoHMS toolbar.&nbsp; I've done all the set up according to the instructions I was given and had no problems with the previous steps.&nbsp; However, on this step I keep getting the error shown in the image.&nbsp; Is this a known problem or am I doing something wrong?</P><P></P><P><IMG class="image-1 jive-image" src="https://community.esri.com/legacyfs/online/460961_pastedImage_3.png" /></P></BODY></HTML> Wed, 02 Oct 2019 16:09:13 GMT AmandaPenning 2019-10-02T16:09:13Z Hec GeoHMS Longest Flowpath https://community.esri.com/t5/arcgis-solutions-questions/hec-geohms-longest-flowpath/m-p/94525#M126 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P>I'm trying to run the Longest Flowpath tool in the Hec GeoHMS toolbar.&nbsp; I've done all the set up according to the instructions I was given and had no problems with the previous steps.&nbsp; However, on this step I keep getting the error shown in the image.&nbsp; Is this a known problem or am I doing something wrong?</P><P></P><P><IMG class="image-1 jive-image" src="https://community.esri.com/legacyfs/online/460961_pastedImage_3.png" /></P></BODY></HTML> Wed, 02 Oct 2019 16:09:13 GMT https://community.esri.com/t5/arcgis-solutions-questions/hec-geohms-longest-flowpath/m-p/94525#M126 AmandaPenning 2019-10-02T16:09:13Z