[Haskell-beginners] Disappearing Module Problem

[Michael Craig]

I was using "cabal install aeson" and "cabal install http-enumerator".
Running the combined command fixed the issue. I'd forgotten that cabal
allows for it.

Is this necessary because of mutual dependencies? With the Platform
installation of cabal, I could run cabal install for each package and
everything would work fine. What's the difference?

Best,
Mike S Craig
(908) 328 8030


On Mon, Sep 12, 2011 at 4:46 PM, Antoine Latter <aslatter at gmail.com> wrote:

> On Mon, Sep 12, 2011 at 3:34 PM, Michael Craig <mkscrg at gmail.com> wrote:
> > I'm trying to install aeson and http-enumerator on an otherwise fresh
> > installation of ghc 7.2 on OS X 10.7. I was inspired by beastaugh's gist
> on
> > getting cabal-install running on Lion: https://gist.github.com/1169332.
> > I can install either aeson or http-enumerator and it'll work fine.
> However,
> > as soon as I install the second one the first one disappears. The files
> are
> > all there in .cabal/lib, but ghc can't find the module.
> > Any ideas?
> >
>
> What command are you using to install these, specifically?
>
> What does the following do:
>
> > cabal install aeson http-enumerator
>
> Thanks,
> Antoine
>
> > Mike S Craig
> >
> > _______________________________________________
> > Beginners mailing list
> > Beginners at haskell.org
> > http://www.haskell.org/mailman/listinfo/beginners
> >
> >
>
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