[Haskell-cafe] cabal install...

[Gregory Guthrie]

Hmm,
Now when I tried to run Leksah, I get not only some broken packages (which I can avoid for my current project), but:

<command line>: cannot satisfy -package-id base-4.5.1.0-7c83b96f47f23db63c42a56351dcb917:
    base-4.5.1.0-7c83b96f47f23db63c42a56351dcb917 is unusable due to missing or recursive dependencies:
      integer-gmp-0.4.0.0-c15e185526893c3119f809251aac8c5b
    (use -v for more information)

So I tried to install base, then re-install it, but both fail;
Any hints?
-------------------------------
C:\Users\guthrie>cabal install base
Resolving dependencies...
All the requested packages are already installed:
base-4.5.1.0
Use --reinstall if you want to reinstall anyway.

C:\Users\guthrie>cabal install --reinstall base
Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: base (user goal)
rejecting: base-3.0.3.2 (conflict: base => base>=4.0 && <4.3)
rejecting: base-3.0.3.1 (conflict: base => base>=4.0 && <4.2)
rejecting: base-4.6.0.0, 4.5.1.0, 4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0,
4.2.0.2, 4.2.0.1, 4.2.0.0, 4.1.0.0, 4.0.0.0 (only already installed instances can be used)

C:\Users\guthrie>ghc-pkg list base
WARNING: there are broken packages.  Run 'ghc-pkg check' for more details.
e:/Plang/Haskell Platform\lib\package.conf.d:
    base-4.3.1.0
    base-4.5.0.0
    base-4.5.1.0

The following packages are broken, either because they have a problem
listed above, or because they depend on a broken package.
HTTP-4000.2.3
haskell-platform-2012.2.0.0

Can I just unregister the old Haskell platform, I now use a newer one?
Ghc-pkg list : ...
    {haskell-platform-2012.2.0.0}
    haskell-platform-2012.4.0.0
    haskell-src-1.0.1.4
    haskell-src-1.0.1.4
    haskell-src-1.0.1.5
    haskell-src-1.0.1.5
    (haskell2010-1.0.0.0)
    (haskell2010-1.1.0.1)
    (haskell2010-1.1.0.1)
    haskell98-1.1.0.1
    (haskell98-2.0.0.1)
    (haskell98-2.0.0.1)

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