[Haskell-cafe] Cabal hell (8.2.1,/Haskell Package/MacOS X)

Christopher Allen cma at bitemyapp.com
Thu Oct 5 15:36:53 UTC 2017

New version of Haskell Platform, like past ones, has proven
troublesome for users.

I'd suggest using Stack (http://haskellstack.org) with the current LTS
which uses GHC 8.0.2, which is has been stable my work.

I'm happy to help if you have any questions.

— Chris

On Thu, Oct 5, 2017 at 10:29 AM, Stuart A. Kurtz <stuart at cs.uchicago.edu> wrote:
> Dear Cafe,
> I've had my first extended visit into cabal hell...
> ghc: 8.2.1 (Haskell Platform)
> cabal:
> cabal-install:
> OS: MacOS X 10.13 (High Sierra)
> I have problems around trying to install some standard packages: hlint, aeson. A typical error reported by cabal is
> <command line>: cannot satisfy -package-id hashable-
>     hashable- is unusable due to shadowed dependencies:
>       text-
> FWIW, the versions of these packages reported by ghc-pkg are
>     hashable-
>     text-
> Suggestions welcome...
> Peace,
> Stu
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Chris Allen
Currently working on http://haskellbook.com

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