16 Oct
2014
16 Oct
'14
4:11 p.m.
On 10/15/2014 06:55 PM, Michael L Martin wrote: > Hello all, > > I am trying to install the latest version of Haskell Platform and am > having a problem. > > I created a new VM and installed Ubuntu 14.04 server and applied the > latest updates. Also installed packages > "build-essential" and "zlib1g-dev". > > I then downloaded and installed ghc-7.8.3 from > https://www.haskell.org/ghc/download_ghc_7_8_3#x86_64linux > and then downloaded and installed cabal 1.20.0.3 from > http://hackage.haskell.org/package/cabal-install. > > After installing cabal, I did a "cabal update" followed by "cabal > install hscolour". > > Then downloaded the latest Haskell Platform tarball > (haskell-platform-2014.2.0.0-srcdist.tar.gz) and attempted to > install like this: > > ./platform.sh ../ghc-7.8.3-x86_64-unknown-linux-deb7.tar.bz2 > > This fails like this: > > *** > *** Building hptool > *** > Building hptool-0.1... > Preprocessing executable 'hptool' for hptool-0.1... > *** > *** Running hptool > *** > # rm (for > build/.markers/rel/build/target/usr/local/haskell/ghc-7.8.3-x86_64/lib/happy-1.19.4) > # rm (for build/.markers/rel/build/package/happy-1.19.4/build) > happy-1.19.4 needs mtl-2.1.3.1 > >>> Building happy-1.19.4 > # cp (for build/.markers/rel/build/package/happy-1.19.4/build) > # rm (for build/.markers/rel/build/package/happy-1.19.4/build) > # ghc-pkg (for build/.markers/rel/build/package/happy-1.19.4/build) > # ghc-pkg (for build/.markers/rel/build/package/happy-1.19.4/build) > Reading package info from "build/package/mtl-2.1.3.1/inplace.conf" ... done. > mtl-2.1.3.1: package(s) with this id already exist: mtl-2.1.3.1 > Error when running Shake build system: > * build-all > * build-product > * build/product/haskell-platform-2014.2.0.0-unknown-posix-x86_64.tar.gz > * build/target > * > build/.markers/rel/build/target/usr/local/haskell/ghc-7.8.3-x86_64/lib/happy-1.19.4 > * build/.markers/rel/build/package/happy-1.19.4/build > Development.Shake.command, system command failed > Command: > /home/mmartin/Downloads/haskell-platform-2014.2.0.0/build/ghc-bindist/local/bin/ghc-pkg > register --package-db=build/package/happy-1.19.4/package.conf.d > --verbose=1 build/package/mtl-2.1.3.1/inplace.conf > Exit code: 1 > Stderr: > mtl-2.1.3.1: package(s) with this id already exist: mtl-2.1.3.1 > > Any suggestions on how to get past this? > > Thanks, > Michael Martin > > _______________________________________________ > Beginners mailing list > Beginners@haskell.org > http://www.haskell.org/mailman/listinfo/beginners > Merely going from the error message and your steps, it seems to me that you're *not* meant to install GHC yourself first and that the platform ships with GHC. I would say try again but without installing GHC and cabal first. -- Mateusz K.