[Haskell-cafe] Cabal hell (8.2.1,/Haskell Package/MacOS X)
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.
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: 220.127.116.11
> cabal-install: 18.104.22.168
> 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-22.214.171.124-14fEJP30YhAG9w115PODz0:
> hashable-126.96.36.199-14fEJP30YhAG9w115PODz0 is unusable due to shadowed dependencies:
> FWIW, the versions of these packages reported by ghc-pkg are
> Suggestions welcome...
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