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Today's Topics:
1. Failure to install cabal-install. (Derek Mahar)
2. Re: Failure to install cabal-install. (Derek Mahar)
----------------------------------------------------------------------
Message: 1
Date: Mon, 24 Feb 2014 13:20:45 -0500
From: Derek Mahar <[email protected]>
To: [email protected]
Subject: [Haskell-beginners] Failure to install cabal-install.
Message-ID:
<CABtfiZb7+p=dtgoz57gvxwghcdk1vpl175uxmirry1exm4a...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
How can I tell the Haskell compiler where to find module
Control.Monad.Error? After building GHC 7.6.3 and Haskell Platform 2013.2
on Red Hat Linux 6, I found that 'cabal install cabal-install' fails when
it attempts to build library HTTP-4000.2.11 because the Haskell compiler
cannot find module Control.Monad.Error.
*******************************************************
* Installation completed successfully.
*
* Programs installed into:
* /usr/local/bin
*
* Now do "cabal update" to initialize the package list
*
* Additional packages may be found at http://hackage.haskell.org
* or via "cabal list <pattern>"
*
* Use "cabal install <foo>" to install additional packages
*
*******************************************************
[dmahar@dmahar haskell-platform-2013.2.0.0]$ cabal update
Downloading the latest package list from hackage.haskell.org
Note: there is a new version of cabal-install available.
To upgrade, run: cabal install cabal-install
[dmahar@dmahar haskell-platform-2013.2.0.0]$ cabal install cabal-install
Resolving dependencies...
Configuring HTTP-4000.2.11...
Building HTTP-4000.2.11...
Preprocessing library HTTP-4000.2.11...
Network/Stream.hs:35:8:
Could not find module `Control.Monad.Error'
There are files missing in the `mtl-2.1.2' package,
try running 'ghc-pkg check'.
Use -v to see a list of the files searched for.
Failed to install HTTP-4000.2.11
cabal: Error: some packages failed to install:
HTTP-4000.2.11 failed during the building phase. The exception was:
ExitFailure 1
cabal-install-1.18.0.2 depends on HTTP-4000.2.11 which failed to install.
Thank you,
Derek
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Message: 2
Date: Mon, 24 Feb 2014 14:30:14 -0500
From: Derek Mahar <[email protected]>
To: [email protected]
Subject: Re: [Haskell-beginners] Failure to install cabal-install.
Message-ID:
<CABtfiZbF--Q93cx-GRHTU+FaX4+9d1uTSkoyb8E-N5e=c5z...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
On Mon, Feb 24, 2014 at 1:20 PM, Derek Mahar <[email protected]> wrote:
> [dmahar@dmahar haskell-platform-2013.2.0.0]$ cabal update
> Downloading the latest package list from hackage.haskell.org
> Note: there is a new version of cabal-install available.
> To upgrade, run: cabal install cabal-install
> [dmahar@dmahar haskell-platform-2013.2.0.0]$ cabal install cabal-install
> Resolving dependencies...
> Configuring HTTP-4000.2.11...
> Building HTTP-4000.2.11...
> Preprocessing library HTTP-4000.2.11...
>
> Network/Stream.hs:35:8:
> Could not find module `Control.Monad.Error'
> There are files missing in the `mtl-2.1.2' package,
> try running 'ghc-pkg check'.
> Use -v to see a list of the files searched for.
> Failed to install HTTP-4000.2.11
> cabal: Error: some packages failed to install:
> HTTP-4000.2.11 failed during the building phase. The exception was:
> ExitFailure 1
> cabal-install-1.18.0.2 depends on HTTP-4000.2.11 which failed to install.
>
'ghc-pkg -v check' reports that my Haskell environment is missing many
files and that many of its packages are broken. See the attached output of
'ghc-pkg -v check'.
Derek
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