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

Mikhail Glushenkov mikhail.glushenkov at gmail.com
Thu Oct 5 15:47:47 UTC 2017


On 5 October 2017 at 16:29, Stuart A. Kurtz <stuart at cs.uchicago.edu> wrote:
> 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-

This looks like a known Cabal 2.0 bug, which I haven't yet got around to fix:


IIUC, this affects both Stack and Cabal, but only when used with GHC
8.2.1. Downgrading to GHC 8.0.2 should help for now.

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