On Thu, Jun 16, 2011 at 3:05 PM, Henning Thielemann <lemm...@henning-thielemann.de> wrote: > > On Fri, 17 Jun 2011, Dmitri O.Kondratiev wrote: > >> How to make cabal install all the dependencies? I couldn't find this in >> the docs at: >> http://www.haskell.org/haskellwiki/Cabal-Install > > Usually, 'cabal install' automatically installs all imported packages. But > it will certainly not do, if a dependency problem cannot be solved by > downloading packages. In your case it may be, that installed packages are > compiled with respect to different versions of the same package, say > 'transformers'. > > I found out, that you get more useful cabal messages if you force > cabal-install to use a specific version of a package. > > Say, run > $ ghc-pkg list transformers > transformers-0.2.2.0 > > Then call > $ cabal install spreadsheet --constraint=transformers==0.2.2.0
Nicer still, is to use cabal-dev: http://www.reddit.com/r/haskell/comments/f3ykj/psa_use_cabaldev_to_solve_dependency_problems/ Jason _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
