Hi, Thank you for the answers. The culprit was in xmonad. Best regards, Alain On 21/11/2022 16:33, Brandon Allbery wrote:

That looks like you have an environment file hanging around somewhere. It'll be named something like `.ghc.environment.x86-64-linux-9.0.2`. You'll need to remove it, since it references a cabal store that no longer exists.

On Mon, Nov 21, 2022 at 12:26 AM Alain Bertrand wrote:

...

Hi all,

I am on a Debian sid system. when I installed it, xmonad packages were not installable so I compiled it myself. At a time, it became available, I installed the package. A few days ago, I noticed that xmonad would not recompile anymore. I removed all the stuff I had compiled by myself, but still, it doesn't compile.

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xmonad --recompile XMonad will use ghc to recompile, because neither "/home/alain/.config/xmonad/build" nor "/home/alain/.config/xmonad/stack.yaml" exis ts. 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 /home/ala in/.cache/xmonad/xmonad-x86_64-linux ghc: can't find a package database at /home/alain/.cabal/store/ghc-9.0.2/package.db

Please check the file for errors.

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Thanks for your help.

Alain

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