Hi, I use xmonad on arch linux. I've recently updated my system, as one often does, and now my xmonad.hs is failing to compile and I am failing to start xmonad. Here is an example of an error: xmonad.hs:3:1: error: Could not load module ‘XMonad.Actions.CycleWS’ It is a member of the package ‘xmonad-contrib-0.18.1-Hn3tyQ1hgcfBs6gP5hIKJ’ which is unusable due to missing dependencies: random-1.2.1.2-4MvNAJNQIvxGHtrKNblxG1 Use -v (or `:set -v` in ghci) to see a list of the files searched for. | 3 | import XMonad.Actions.CycleWS | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ The full log is here: https://pastebin.com/KkFQQSwU It seems that xmonad-contrib is missing the "random" library. I've tried reinstalling xmonad, xmonad-contrib, haskell-random, and any other library I can think of. However, it does not seem to improve the situation. Is there anything I can do to debug this further? Here are some of my installed package versions: xmonad 0.18.0-20 xmonad-contrib 0.18.1-5 haskell-random 1.2.1.2-16 Thank you kindly -- There are 10 types of people, those who know binary and those who don't.