# fc-cache -s Fontconfig error: failed reading config file Fontconfig error: failed reading config file Fontconfig error: failed reading config file Fontconfig error: failed reading config file Fontconfig error: failed reading config file
Turns out each of those is one place where /etc/fonts/conf.d has a symlink to one of these directories. I fixed the problem locally on my system by moving the directories out of the way and then moving the .dpkg-new file in to place.