from http://aur.archlinux.org/packages.php?ID=29429 gdweber wrote: This can be fixed by changing the dependency item 'haskell-parsec>=3.0.0' to 'haskell-parsec3>=3.0.0'. This would use the AUR package contributed by Vladimir Matveev . In fact, why not do this for all the Haskell packages that require parsec 3? --- If you no longer wish to receive notifications about this package, please go the the above package page and click the UnNotify button.