Tried with Cabal. alain@keitai-kun:~/.config/xmonad$ ~/.cabal/bin/xmonad --recompile XMonad will use ghc to recompile, because neither "/home/alain/.config/xmonad/build" nor "/home/alain/.config/xmonad/stack.yaml " exists. XMonad recompiling (forced). Errors detected while compiling xmonad config: /home/alain/.config/xmonad/xmonad.hs $ ghc --make xmonad.hs -i -ilib -fforce-recomp -main-is main -v0 -outputdir /home/alain/.cache/xmonad/build-x86_64-linux -o /ho me/alain/.cache/xmonad/xmonad-x86_64-linux xmonad.hs:5:2: error: Could not load module ‘Graphics.X11.Xlib’ It is a member of the hidden package ‘X11-1.10.2’. You can run ‘:set -package X11’ to expose it. (Note: this unloads all the modules in the current scope.) Use -v (or `:set -v` in ghci) to see a list of the files searched for. | 5 | import Graphics.X11.Xlib | ^^^^^^^^^^^^^^^^^^^^^^^^ Please check the file for errors. I am ok with ':set -package X11’ but couldn't find the right syntax. Alain On 20/07/2022 15:58, Brandon Allbery wrote:
Oh my. That suggests the corruption is in your main .stack while trying to register the built packages. But at this point I have to hand you off to someone who knows stack better than I do.