On Tue, Feb 25, 2014 at 09:36:54PM +0100, Maykel Franco wrote: > error: failed to prepare transaction (could not satisfy dependencies) > :: haskell-haskeline: requires haskell-terminfo=0.3.2.5-3 The package "haskell-haskeline" depends on an earlier version of the package "haskell-terminfo" than the one currently available in [community]. I just tried installing the former as a test, and got the same error you did. Chances are the Trusted User responsible for haskell-haskeline hasn't yet updated the package yet; I would suggest waiting a day or so and trying again or, if haskell-haskeline isn't vitally important, uninstalling it and updating your system. You could then try to reinstall the package later.
