I am on a Raspberry Pi Zero W. When I cd to the the /etc/udev/rules.d folder, the only file that exists is "99-com.rules". After a bit of research, I came across only two possible solutions, apt-get install udev (which failed as I was already on the latest version), and to try and run a script, or reboot and get a new 70-persistent-net.rules file, autogenerated by the /lib/udev/rules.d/write\_net\_rules file. That file was also not present. My only guess was that the solution was a package that I hadn't installed, but I wasn't able to find a solution.