I am attempting to set up GeoPortal 1.2.4 and use ArcGIS 10.2 as my client desktop. I haven't come across any documentation which says these are compatible other than the Git page. However, I am unable to set up my software, I am getting a message which says 10.1 is not installed.

https://github.com/Esri/geoportal-server/wiki/Preinstallation-1.2.4