xmonad unable to compile config file

[jan2ary]

Binary package hint: xmonad

Getting error while compiling xmonad config file:

andrey@pepelaz:~$ cat > .xmonad/xmonad.hs
import XMonad

main = xmonad defaultConfig
andrey@pepelaz:~$ ghci .xmonad/xmonad.hs
GHCi, version 6.8.2: http://www.haskell.org/ghc/ :? for help
Loading package base ... linking ... done.
[1 of 1] Compiling Main ( .xmonad/xmonad.hs, interpreted )
Failed to load interface for `Graphics.X11.Xlib.Extras':
  no package matching X11-1.4.1 was found
> Leaving GHCi.
andrey@pepelaz:~$
andrey@pepelaz:~$ lsb_release -rd
Description: Ubuntu 8.10
Release: 8.10
andrey@pepelaz:~$ apt-cache policy xmonad
xmonad:
  Installed: 0.8-1
  Candidate: 0.8-1
  Version table:
 *** 0.8-1 0
        500 http://archive.ubuntu.com intrepid/universe Packages
        100 /var/lib/dpkg/status

ProblemType: Bug
Architecture: i386
DistroRelease: Ubuntu 8.10
Package: xmonad 0.8-1
ProcEnviron:
 SHELL=/bin/bash
 PATH=/home/username/.oracle/client/instantclient_10_2:/usr/lib/oracle/xe/app/oracle/product/10.2.0/server/bin:/home/username/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_US.UTF-8
SourcePackage: xmonad
Uname: Linux 2.6.27-7-generic i686

[Toni Ruottu (toni-ruottu)]

The problem seems to be that Jaunty is shipping with libghc6-x11-dev version 1.4.2-1, while xmonad 0.8 requires version 1.4.1.

[Toni Ruottu (toni-ruottu)]

I was wrong. The problem is something that gets stored in user specific system state. I create a new user account. On that account compiling and using xmonad worked like a dream. Weird.

[Iain Lane (laney)]

Looks like user error - had xmonad 0.7 installed locally (per-user).

[Toni Ruottu (toni-ruottu)]

"ghc-pkg check" revealed some old manually installed xmonad stuff that caused the problems.

As a fix for this problem. First uninstall all xmonad Ubuntu packages. Then use ghc-pkg unregister to get rid of the manually installed packages. After this reinstall the Ubuntu packages. I got my package management all mixed up while I was fixing this problem, but I think you can avoid all that by uninstalling the relevant packages with apt-get before uninstalling them with ghc-pkg.

jan2ary, please post the output of "ghc-pkg check" as this may reveal the bug to be local to your system.