cabal cannot be updated and "some packages failed to install"

cabal, cabal-install, haskell

Solution

The simplest solution is to just upgrade from the ground up, starting with GHC. Version 6.12 is old. However, if for some reason you can't or don't want to upgrade GHC, here are some hints aimed at helping you fix each problem.

cabal: alex is required but it could not be found.

Your instinct to run `cabal install alex` was the correct response.

ghc: unrecognised flags: -rtsopts

It looks like you have an old-ish GHC; the `-rtsopts` flag was added in GHC 7 (I see from later in your question that you're running 6.12). You should probably try installing an older version of alex -- perhaps one contemporary with 6.12, which was released 2.5 years ago or so. Optionally, complain to the alex maintainer if you think it should still support GHC6. One other choice is to try fixing it yourself; take a look in the `.cabal` file bundled with alex and see if just removing the `-rtsopts` flag lets things continue.

Couldn't match expected type `Char' against inferred type `[Char]'

Not as sure about this one, but it sounds like the version bounds on `network`'s dependencies aren't strict enough. Again, one solution is to attempt to install an older version of network, and another is to attempt to fix it yourself by changing `network`'s `.cabal` file. Honestly, this sounds like the hardest problem to fix of all the ones you talk about.

(edited to add:) per some discussion on #haskell, it seems that the type of `notFollowedBy` has changed between parsec-2 and parsec-3. So perhaps this is as easy as bumping the dependency in network's cabal file to parsec >= 3 instead of >= 2.

but `ghc-pkg check` nevertheless keeps complaining about a missing or broken Cabal-1.10.2.0

GHC is capable of tracking multiple versions of a single library, so installing a new version of `Cabal` won't fix the old versions. You can ask cabal-install to reinstall a particular version to try fixing this; e.g.

cabal install --reinstall Cabal-1.10.2.0

Problem

I am rather new to the Haskell world and I would like to use the package HaskellCharts. The way to go seems to be using cabal, so I installed `cabal-install` from my repository (I'm on Ubuntu 10.04.4 LTS 32-bit). My specs are: ``` $ ghc --version The Glorious Glasgow Haskell Compilation System, version 6.12.1 $ which ghc /usr/bin/ghc $ cabal --version cabal-install version 0.8.0 using version 1.8.0.2 of the Cabal library ``` The HaskellCharts installation guide (as of May 27th 2010) told me to ``` cabal update cabal install gtk2hs-buildtools cabal install gtk cabal install chart ``` `cabal update` was successful and informed me that a newer version of cabal was available. ``` $ cabal install gtk2hs-buildtools ``` however, yields ``` Resolving dependencies... Downloading gtk2hs-buildtools-0.12.3.1... Configuring gtk2hs-buildtools-0.12.3.1... cabal: alex is required but it could not be found. cabal: Error: some packages failed to install: gtk2hs-buildtools-0.12.3.1 failed during the configure step. The exception was: ExitFailure 1 ``` So I tried to install `alex` first, but this also results in an error, the origin of which I cannot make out: ``` $ cabal install alex Resolving dependencies... Downloading alex-3.0.2... [1 of 1] Compiling Main ( /tmp/alex-3.0.219087/alex-3.0.2/Setup.lhs, /tmp/alex-3.0.219087/alex-3.0.2/dist/setup/Main.o ) Linking /tmp/alex-3.0.219087/alex-3.0.2/dist/setup/setup ... Configuring alex-3.0.2... Preprocessing executables for alex-3.0.2... Building alex-3.0.2... ghc: unrecognised flags: -rtsopts Usage: For basic information, try the `--help' option. cabal: Error: some packages failed to install: alex-3.0.2 failed during the building phase. The exception was: ExitFailure 1 ``` In order to make sure that problems would not arise from an outdated version/incompatible versions of packages etc., I tried to update cabal itself. ``` $ cabal install cabal-install ``` leads to ``` Resolving dependencies... Warning: network.cabal: Ignoring unknown section type: test-suite Warning: network.cabal: Ignoring unknown section type: test-suite Configuring network-2.3.1.0... configure: WARNING: unrecognized options: --with-compiler checking build system type... i686-pc-linux-gnu checking host system type... i686-pc-linux-gnu checking for gcc... gcc checking whether the C compiler works... yes checking for C compiler default output file name... a.out checking for suffix of executables... checking whether we are cross compiling... no checking for suffix of object files... o checking whether we are using the GNU C compiler... yes checking whether gcc accepts -g... yes checking for gcc option to accept ISO C89... none needed checking for an ANSI C-conforming const... yes checking how to run the C preprocessor... gcc -E checking for grep that handles long lines and -e... /bin/grep checking for egrep... /bin/grep -E checking for ANSI C header files... yes checking for sys/types.h... yes checking for sys/stat.h... yes checking for stdlib.h... yes checking for string.h... yes checking for memory.h... yes checking for strings.h... yes checking for inttypes.h... yes checking for stdint.h... yes checking for unistd.h... yes checking fcntl.h usability... yes checking fcntl.h presence... yes checking for fcntl.h... yes checking limits.h usability... yes checking limits.h presence... yes checking for limits.h... yes checking for stdlib.h... (cached) yes checking for sys/types.h... (cached) yes checking for unistd.h... (cached) yes checking winsock2.h usability... no checking winsock2.h presence... no checking for winsock2.h... no checking ws2tcpip.h usability... no checking ws2tcpip.h presence... no checking for ws2tcpip.h... no checking wspiapi.h usability... no checking wspiapi.h presence... no checking for wspiapi.h... no checking arpa/inet.h usability... yes checking arpa/inet.h presence... yes checking for arpa/inet.h... yes checking netdb.h usability... yes checking netdb.h presence... yes checking for netdb.h... yes checking netinet/in.h usability... yes checking netinet/in.h presence... yes checking for netinet/in.h... yes checking netinet/tcp.h usability... yes checking netinet/tcp.h presence... yes checking for netinet/tcp.h... yes checking sys/socket.h usability... yes checking sys/socket.h presence... yes checking for sys/socket.h... yes checking sys/uio.h usability... yes checking sys/uio.h presence... yes checking for sys/uio.h... yes checking sys/un.h usability... yes checking sys/un.h presence... yes checking for sys/un.h... yes checking for readlink... yes checking for symlink... yes checking for struct msghdr.msg_control... yes checking for struct msghdr.msg_accrights... no checking for struct sockaddr.sa_len... no checking for in_addr_t in netinet/in.h... yes checking for SO_PEERCRED and struct ucred in sys/socket.h... yes checking for _head_libws2_32_a in -lws2_32... no checking for getaddrinfo... yes checking for gai_strerror... yes checking whether AI_ADDRCONFIG is declared... yes checking whether AI_ALL is declared... yes checking whether AI_NUMERICSERV is declared... yes checking whether AI_V4MAPPED is declared... yes checking whether IPV6_V6ONLY is declared... yes checking for sendfile in sys/sendfile.h... yes checking for sendfile in sys/socket.h... no checking for gethostent... yes checking for accept4... yes configure: creating ./config.status config.status: creating network.buildinfo config.status: creating include/HsNetworkConfig.h configure: WARNING: unrecognized options: --with-compiler Preprocessing library network-2.3.1.0... Building network-2.3.1.0... [ 1 of 10] Compiling Network.URI ( Network/URI.hs, dist/build/Network/URI.o ) Network/URI.hs:580:24: Couldn't match expected type `Char' against inferred type `[Char]' Expected type: GenParser Char () Char Inferred type: URIParser String In the first argument of `notFollowedBy', namely `regName' In a stmt of a 'do' expression: notFollowedBy regName cabal: Error: some packages failed to install: HTTP-4000.2.3 depends on network-2.3.1.0 which failed to install. cabal-install-0.10.2 depends on network-2.3.1.0 which failed to install. network-2.3.1.0 failed during the building phase. The exception was: ExitFailure 1 ``` Trying to install the `network` package on its own via `cabal install network` yields the exact same error. I tried ``` $ ghc-pkg check ``` which prints this: ``` There are problems in package QuickCheck-2.5: import-dirs: /home/kenny/.cabal/lib/QuickCheck-2.5/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/QuickCheck-2.5/ghc-6.12.1 doesn't exist or isn't a directory file Test/QuickCheck/All.hi is missing file Test/QuickCheck/Function.hi is missing file Test/QuickCheck.hi is missing file Test/QuickCheck/Arbitrary.hi is missing file Test/QuickCheck/Gen.hi is missing file Test/QuickCheck/Monadic.hi is missing file Test/QuickCheck/Modifiers.hi is missing file Test/QuickCheck/Property.hi is missing file Test/QuickCheck/Test.hi is missing file Test/QuickCheck/Text.hi is missing file Test/QuickCheck/Poly.hi is missing file Test/QuickCheck/State.hi is missing file Test/QuickCheck/Exception.hi is missing cannot find libHSQuickCheck-2.5.a on library path There are problems in package Chart-0.16: import-dirs: /home/kenny/.cabal/lib/Chart-0.16/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/Chart-0.16/ghc-6.12.1 doesn't exist or isn't a directory file Graphics/Rendering/Chart.hi is missing file Graphics/Rendering/Chart/Types.hi is missing file Graphics/Rendering/Chart/Renderable.hi is missing file Graphics/Rendering/Chart/Axis.hi is missing file Graphics/Rendering/Chart/Axis/Floating.hi is missing file Graphics/Rendering/Chart/Axis/Indexed.hi is missing file Graphics/Rendering/Chart/Axis/Int.hi is missing file Graphics/Rendering/Chart/Axis/LocalTime.hi is missing file Graphics/Rendering/Chart/Axis/Types.hi is missing file Graphics/Rendering/Chart/Axis/Unit.hi is missing file Graphics/Rendering/Chart/Layout.hi is missing file Graphics/Rendering/Chart/Legend.hi is missing file Graphics/Rendering/Chart/Simple.hi is missing file Graphics/Rendering/Chart/Simple/Internal.hi is missing file Graphics/Rendering/Chart/Grid.hi is missing file Graphics/Rendering/Chart/Plot.hi is missing file Graphics/Rendering/Chart/Plot/Types.hi is missing file Graphics/Rendering/Chart/Plot/Annotation.hi is missing file Graphics/Rendering/Chart/Plot/AreaSpots.hi is missing file Graphics/Rendering/Chart/Plot/Bars.hi is missing file Graphics/Rendering/Chart/Plot/Candle.hi is missing file Graphics/Rendering/Chart/Plot/ErrBars.hi is missing file Graphics/Rendering/Chart/Plot/FillBetween.hi is missing file Graphics/Rendering/Chart/Plot/Hidden.hi is missing file Graphics/Rendering/Chart/Plot/Lines.hi is missing file Graphics/Rendering/Chart/Plot/Pie.hi is missing file Graphics/Rendering/Chart/Plot/Points.hi is missing file Graphics/Rendering/Chart/SparkLine.hi is missing cannot find libHSChart-0.16.a on library path There are problems in package data-accessor-template-0.2.1.9: import-dirs: /home/kenny/.cabal/lib/data-accessor-template-0.2.1.9/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/data-accessor-template-0.2.1.9/ghc-6.12.1 doesn't exist or isn't a directory file Data/Accessor/Template.hi is missing file Data/Accessor/Template/Example.hi is missing cannot find libHSdata-accessor-template-0.2.1.9.a on library path There are problems in package utility-ht-0.0.8: import-dirs: /home/kenny/.cabal/lib/utility-ht-0.0.8/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/utility-ht-0.0.8/ghc-6.12.1 doesn't exist or isn't a directory file Data/Bool/HT.hi is missing file Data/Eq/HT.hi is missing file Data/Function/HT.hi is missing file Data/Ix/Enum.hi is missing file Data/List/HT.hi is missing file Data/List/Key.hi is missing file Data/List/Match.hi is missing file Data/Maybe/HT.hi is missing file Data/Monoid/HT.hi is missing file Data/Ord/HT.hi is missing file Data/Record/HT.hi is missing file Data/String/HT.hi is missing file Data/Tuple/HT.hi is missing file Control/Monad/HT.hi is missing file Control/Functor/HT.hi is missing file Data/Strictness/HT.hi is missing file Text/Read/HT.hi is missing file Text/Show/HT.hi is missing file Data/Bool/HT/Private.hi is missing file Data/List/HT/Private.hi is missing file Data/List/Key/Private.hi is missing file Data/List/Match/Private.hi is missing file Data/Function/HT/Private.hi is missing file Data/Record/HT/Private.hi is missing cannot find libHSutility-ht-0.0.8.a on library path There are problems in package data-accessor-0.2.2.2: import-dirs: /home/kenny/.cabal/lib/data-accessor-0.2.2.2/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/data-accessor-0.2.2.2/ghc-6.12.1 doesn't exist or isn't a directory file Data/Accessor.hi is missing file Data/Accessor/Basic.hi is missing file Data/Accessor/Container.hi is missing file Data/Accessor/Show.hi is missing file Data/Accessor/Tuple.hi is missing file Data/Accessor/BinaryRead.hi is missing file Data/Accessor/MonadState.hi is missing file Data/Accessor/Example.hi is missing file Data/Accessor/Private.hi is missing file Data/Accessor/MonadStatePrivate.hi is missing cannot find libHSdata-accessor-0.2.2.2.a on library path There are problems in package mtl-2.1.2: import-dirs: /home/kenny/.cabal/lib/mtl-2.1.2/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/mtl-2.1.2/ghc-6.12.1 doesn't exist or isn't a directory file Control/Monad/Cont.hi is missing file Control/Monad/Cont/Class.hi is missing file Control/Monad/Error.hi is missing file Control/Monad/Error/Class.hi is missing file Control/Monad/Identity.hi is missing file Control/Monad/List.hi is missing file Control/Monad/RWS.hi is missing file Control/Monad/RWS/Class.hi is missing file Control/Monad/RWS/Lazy.hi is missing file Control/Monad/RWS/Strict.hi is missing file Control/Monad/Reader.hi is missing file Control/Monad/Reader/Class.hi is missing file Control/Monad/State.hi is missing file Control/Monad/State/Class.hi is missing file Control/Monad/State/Lazy.hi is missing file Control/Monad/State/Strict.hi is missing file Control/Monad/Trans.hi is missing file Control/Monad/Writer.hi is missing file Control/Monad/Writer/Class.hi is missing file Control/Monad/Writer/Lazy.hi is missing file Control/Monad/Writer/Strict.hi is missing cannot find libHSmtl-2.1.2.a on library path There are problems in package transformers-0.3.0.0: import-dirs: /home/kenny/.cabal/lib/transformers-0.3.0.0/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/transformers-0.3.0.0/ghc-6.12.1 doesn't exist or isn't a directory file Control/Applicative/Backwards.hi is missing file Control/Applicative/Lift.hi is missing file Control/Monad/IO/Class.hi is missing file Control/Monad/Trans/Class.hi is missing file Control/Monad/Trans/Cont.hi is missing file Control/Monad/Trans/Error.hi is missing file Control/Monad/Trans/Identity.hi is missing file Control/Monad/Trans/List.hi is missing file Control/Monad/Trans/Maybe.hi is missing file Control/Monad/Trans/Reader.hi is missing file Control/Monad/Trans/RWS.hi is missing file Control/Monad/Trans/RWS/Lazy.hi is missing file Control/Monad/Trans/RWS/Strict.hi is missing file Control/Monad/Trans/State.hi is missing file Control/Monad/Trans/State/Lazy.hi is missing file Control/Monad/Trans/State/Strict.hi is missing file Control/Monad/Trans/Writer.hi is missing file Control/Monad/Trans/Writer/Lazy.hi is missing file Control/Monad/Trans/Writer/Strict.hi is missing file Data/Functor/Compose.hi is missing file Data/Functor/Constant.hi is missing file Data/Functor/Identity.hi is missing file Data/Functor/Product.hi is missing file Data/Functor/Reverse.hi is missing cannot find libHStransformers-0.3.0.0.a on library path There are problems in package Cabal-1.14.0: import-dirs: /home/kenny/.cabal/lib/Cabal-1.14.0/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/Cabal-1.14.0/ghc-6.12.1 doesn't exist or isn't a directory file Distribution/Compiler.hi is missing file Distribution/InstalledPackageInfo.hi is missing file Distribution/License.hi is missing file Distribution/Make.hi is missing file Distribution/ModuleName.hi is missing file Distribution/Package.hi is missing file Distribution/PackageDescription.hi is missing file Distribution/PackageDescription/Configuration.hi is missing file Distribution/PackageDescription/Parse.hi is missing file Distribution/PackageDescription/Check.hi is missing file Distribution/PackageDescription/PrettyPrint.hi is missing file Distribution/ParseUtils.hi is missing file Distribution/ReadE.hi is missing file Distribution/Simple.hi is missing file Distribution/Simple/Build.hi is missing file Distribution/Simple/Build/Macros.hi is missing file Distribution/Simple/Build/PathsModule.hi is missing file Distribution/Simple/BuildPaths.hi is missing file Distribution/Simple/Bench.hi is missing file Distribution/Simple/Command.hi is missing file Distribution/Simple/Compiler.hi is missing file Distribution/Simple/Configure.hi is missing file Distribution/Simple/GHC.hi is missing file Distribution/Simple/LHC.hi is missing file Distribution/Simple/Haddock.hi is missing file Distribution/Simple/Hpc.hi is missing file Distribution/Simple/Hugs.hi is missing file Distribution/Simple/Install.hi is missing file Distribution/Simple/InstallDirs.hi is missing file Distribution/Simple/JHC.hi is missing file Distribution/Simple/LocalBuildInfo.hi is missing file Distribution/Simple/NHC.hi is missing file Distribution/Simple/PackageIndex.hi is missing file Distribution/Simple/PreProcess.hi is missing file Distribution/Simple/PreProcess/Unlit.hi is missing file Distribution/Simple/Program.hi is missing file Distribution/Simple/Program/Ar.hi is missing file Distribution/Simple/Program/Builtin.hi is missing file Distribution/Simple/Program/Db.hi is missing file Distribution/Simple/Program/HcPkg.hi is missing file Distribution/Simple/Program/Hpc.hi is missing file Distribution/Simple/Program/Ld.hi is missing file Distribution/Simple/Program/Run.hi is missing file Distribution/Simple/Program/Script.hi is missing file Distribution/Simple/Program/Types.hi is missing file Distribution/Simple/Register.hi is missing file Distribution/Simple/Setup.hi is missing file Distribution/Simple/SrcDist.hi is missing file Distribution/Simple/Test.hi is missing file Distribution/Simple/UHC.hi is missing file Distribution/Simple/UserHooks.hi is missing file Distribution/Simple/Utils.hi is missing file Distribution/System.hi is missing file Distribution/TestSuite.hi is missing file Distribution/Text.hi is missing file Distribution/Verbosity.hi is missing file Distribution/Version.hi is missing file Distribution/Compat/ReadP.hi is missing file Language/Haskell/Extension.hi is missing file Distribution/GetOpt.hi is missing file Distribution/Compat/Exception.hi is missing file Distribution/Compat/CopyFile.hi is missing file Distribution/Compat/TempFile.hi is missing file Distribution/Simple/GHC/IPI641.hi is missing file Distribution/Simple/GHC/IPI642.hi is missing file Paths_Cabal.hi is missing cannot find libHSCabal-1.14.0.a on library path There are problems in package zlib-0.5.3.3: import-dirs: /home/kenny/.cabal/lib/zlib-0.5.3.3/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/zlib-0.5.3.3/ghc-6.12.1 doesn't exist or isn't a directory file Codec/Compression/GZip.hi is missing file Codec/Compression/Zlib.hi is missing file Codec/Compression/Zlib/Raw.hi is missing file Codec/Compression/Zlib/Internal.hi is missing file Codec/Compression/Zlib/Stream.hi is missing cannot find libHSzlib-0.5.3.3.a on library path There are problems in package colour-2.3.3: import-dirs: /home/kenny/.cabal/lib/colour-2.3.3/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/colour-2.3.3/ghc-6.12.1 doesn't exist or isn't a directory file Data/Colour.hi is missing file Data/Colour/SRGB.hi is missing file Data/Colour/SRGB/Linear.hi is missing file Data/Colour/CIE.hi is missing file Data/Colour/CIE/Illuminant.hi is missing file Data/Colour/RGBSpace.hi is missing file Data/Colour/RGBSpace/HSL.hi is missing file Data/Colour/RGBSpace/HSV.hi is missing file Data/Colour/Names.hi is missing file Data/Colour/Internal.hi is missing file Data/Colour/Chan.hi is missing file Data/Colour/RGB.hi is missing file Data/Colour/Matrix.hi is missing file Data/Colour/CIE/Chromaticity.hi is missing cannot find libHScolour-2.3.3.a on library path There are problems in package Cabal-1.10.2.0: import-dirs: /home/kenny/.cabal/lib/Cabal-1.10.2.0/ghc-6.12.1 doesn't exist or isn't a directory library-dirs: /home/kenny/.cabal/lib/Cabal-1.10.2.0/ghc-6.12.1 doesn't exist or isn't a directory file Distribution/Compiler.hi is missing file Distribution/InstalledPackageInfo.hi is missing file Distribution/License.hi is missing file Distribution/Make.hi is missing file Distribution/ModuleName.hi is missing file Distribution/Package.hi is missing file Distribution/PackageDescription.hi is missing file Distribution/PackageDescription/Configuration.hi is missing file Distribution/PackageDescription/Parse.hi is missing file Distribution/PackageDescription/Check.hi is missing file Distribution/ParseUtils.hi is missing file Distribution/ReadE.hi is missing file Distribution/Simple.hi is missing file Distribution/Simple/Build.hi is missing file Distribution/Simple/Build/Macros.hi is missing file Distribution/Simple/Build/PathsModule.hi is missing file Distribution/Simple/BuildPaths.hi is missing file Distribution/Simple/Command.hi is missing file Distribution/Simple/Compiler.hi is missing file Distribution/Simple/Configure.hi is missing file Distribution/Simple/GHC.hi is missing file Distribution/Simple/LHC.hi is missing file Distribution/Simple/Haddock.hi is missing file Distribution/Simple/Hugs.hi is missing file Distribution/Simple/Install.hi is missing file Distribution/Simple/InstallDirs.hi is missing file Distribution/Simple/JHC.hi is missing file Distribution/Simple/LocalBuildInfo.hi is missing file Distribution/Simple/NHC.hi is missing file Distribution/Simple/PackageIndex.hi is missing file Distribution/Simple/PreProcess.hi is missing file Distribution/Simple/PreProcess/Unlit.hi is missing file Distribution/Simple/Program.hi is missing file Distribution/Simple/Program/Ar.hi is missing file Distribution/Simple/Program/Builtin.hi is missing file Distribution/Simple/Program/Db.hi is missing file Distribution/Simple/Program/HcPkg.hi is missing file Distribution/Simple/Program/Ld.hi is missing file Distribution/Simple/Program/Run.hi is missing file Distribution/Simple/Program/Script.hi is missing file Distribution/Simple/Program/Types.hi is missing file Distribution/Simple/Register.hi is missing file Distribution/Simple/Setup.hi is missing file Distribution/Simple/SrcDist.hi is missing file Distribution/Simple/Test.hi is missing file Distribution/Simple/UHC.hi is missing file Distribution/Simple/UserHooks.hi is missing file Distribution/Simple/Utils.hi is missing file Distribution/System.hi is missing file Distribution/TestSuite.hi is missing file Distribution/Text.hi is missing file Distribution/Verbosity.hi is missing file Distribution/Version.hi is missing file Distribution/Compat/ReadP.hi is missing file Language/Haskell/Extension.hi is missing file Distribution/GetOpt.hi is missing file Distribution/Compat/Exception.hi is missing file Distribution/Compat/CopyFile.hi is missing file Distribution/Compat/TempFile.hi is missing file Distribution/Simple/GHC/IPI641.hi is missing file Distribution/Simple/GHC/IPI642.hi is missing file Paths_Cabal.hi is missing cannot find libHSCabal-1.10.2.0.a on library path The following packages are broken, either because they have a problem listed above, or because they depend on a broken package. QuickCheck-2.5 Chart-0.16 data-accessor-template-0.2.1.9 utility-ht-0.0.8 data-accessor-0.2.2.2 mtl-2.1.2 transformers-0.3.0.0 Cabal-1.14.0 zlib-0.5.3.3 colour-2.3.3 Cabal-1.10.2.0 ``` I reinstalled all of the packages mentioned above via `cabal install --reinstall $PACKAGE`. After this, `ghc-pkg check` yields no more errors except for Cabal-1.10.2.0. What I find very weird is that ``` $ cabal install --reinstall Cabal ``` tries to install Cabal-1.14.0, which seems to work out fine, but `ghc-pkg check` nevertheless keeps complaining about a missing or broken Cabal-1.10.2.0. The stack trace concerning the unsuccessful installation of the network package looks to me as if the network package itself hasn't been built properly (there seem to be compilation errors?). I tried the whole thing using sudo, too, but it did not make any difference. I also found cabal-install-0.10.2 failed during the building phase which deals with a similar cryptic "packages failed to install" error, but the issue wasn't really resolved, it seems. What am I to do here? At the moment it looks like an awfully screwed up cabal install to me. Is there anything I can do about this or should I just forget about it and download the Haskell Platform from the Haskell website?

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