I just installed 18.04 and had the same problem ... so it's not fixed yet.
Seems that copying the epkowa files from /usr/lib/sane to /usr/lib/x86_64-linux-gnu/sane does the trick.
I just installed 18.04 and had the same problem ... so it's not fixed yet.
Seems that copying the epkowa files from /usr/lib/sane to /usr/lib/ x86_64- linux-gnu/ sane does the trick.