I got this software on arcgis 10.4.1 and when installing it gives an error message saying a service pack is required. what does this mean?
If there is other software you need, like server software etc, it may need to be updated to work with 10.4.1
Here is the system and software requirements link.
ArcGIS 10.4.x for Desktop system requirements—ArcGIS Help | ArcGIS for Desktop