[Haskell-beginners] cabal problems

[Patrick Wheeler]

You could try to download cabal binary from:
http://www.haskell.org/cabal/download.html

This might be a this issue, the error reported looks similar:
https://github.com/haskell/cabal/issues/1561

If it is the same then using a newer version of cabal should fix the
problem.

Patrick


On Mon, May 5, 2014 at 4:32 AM, Kees Bleijenberg <k.bleijenberg at lijbrandt.nl
> wrote:

> Thanks Patrick. I think cabal on Windows is different. There is no
> index.tar.gz on my computer. Maybe I'll wait for a new release of the
> Haskell Platform to install GHC again :-(
>
> Additonal: a few days ago I tried to install eclipseFP and the
> installation failed with a cabal error (don't know what error).  Maybe that
> is the source of my problems….?
>
> Kees
> =========================
>
> Van: Beginners [mailto:beginners-bounces at haskell.org] Namens Patrick
> Wheeler
> Verzonden: zondag 4 mei 2014 23:35
> Aan: The Haskell-Beginners Mailing List - Discussion of primarily
> beginner-level topics related to Haskell
> Onderwerp: Re: [Haskell-beginners] cabal problems
>
> I have not run into that problem before.
>
> I would download:
> http://hackage.haskell.org/packages/index.tar.gz
>
> There is a link for it near the bottom of the main page:
> http://hackage.haskell.org
>
> On my mac i would copy it to:
>
> ~/.cabal/packages/hackage.haskell.org/.
>
> I am not sure where the cabal directory is on windows though.
>
> If that does not work another option wold but to download the source for
> cabal-install and compile it.
>
> cabal unpack cabal-install, or grab the tarball at the bottom of:
> http://hackage.haskell.org/package/cabal-install
>
> cd into the directory and use `cabal install`
>
> That should work if you have all of the dependancies already on your
> computer. If you don't and the missing dependency list is large(cabal
> configure can tell you what you are missing) then it might just be quicker
> to reinstall the haskell platform.
>
> Hope that helps,
>
> Patrick
>
> On Sat, May 3, 2014 at 1:09 PM, Kees Bleijenberg <
> k.bleijenberg at lijbrandt.nl> wrote:
> I don’t know exactly how, but suddenly I get cabal errors.
> If I do cabal update there are no errors, everything is fine.
> Cabal install caball-install => cabal: internal error when reading
> packages  index: could not read tar file entry. The package index or
> package cache is probably corrupt. Running cabal update might fix it.
> Every  install or update shows the same error message.
>
> I’am using win7 64 bits, Haskell platform 2013.2.0.0. If i do  cabal  - -
> version => cabal install version 1.18.0.2 using version 1.18.1 of the cabal
> library.
> On Google the advice is to clear the directory
> c:\users\<user>\appData\roaming\cabal empty.  But that removes all my
> packages. Isn’t there an easier way?
> I have never used cabal sandboxes (at least not on purpose)
>
> Kees
>
>
>
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>
> --
> Patrick Wheeler
> Patrick.John.Wheeler at gmail.com
> Patrick.J.Wheeler at rice.edu
> Patrick.Wheeler at colorado.edu
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-- 
Patrick Wheeler
Patrick.John.Wheeler at gmail.com
Patrick.J.Wheeler at rice.edu
Patrick.Wheeler at colorado.edu
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