cabal-install 1.20.0.0無法在OS X上安裝

Question

在OS X 10.9.2上，我安裝了GHC平台。 （有一個事先安裝，但我相信我通過刪除/Library/Haskell和/Users/username/Library/Haskell來消除它。）平台附帶了Cabal 1.16。 我想要最新的Cabal支持沙盒，所以我跑了：

cabal update
cabal install cabal --reinstall

那很好。 但后來我嘗試升級cabal-install ：

cabal install cabal-install -v

它失敗了以下輸出：

Reading available packages...
Choosing modular solver.
Resolving dependencies...
Ready to install cabal-install-1.20.0.0
Waiting for install task to finish...
Extracting
/Users/username/Library/Haskell/repo-cache/hackage.haskell.org/cabal-install/1.20.0.0/cabal-install-1.20.0.0.tar.gz
to
/var/folders/jt/ywln8_hn75q1yfkhnpcs1bzh0000gn/T/cabal-install-1.20.0.0-51744...
Updating cabal-install.cabal with the latest revision from the index.
Configuring cabal-install-1.20.0.0...
Flags chosen: old-directory=False
Dependency Cabal ==1.20.0.0: using Cabal-1.20.0.0
Dependency HTTP ==4000.2.8: using HTTP-4000.2.8
Dependency array ==0.4.0.1: using array-0.4.0.1
Dependency base ==4.6.0.1: using base-4.6.0.1
Dependency bytestring ==0.10.0.2: using bytestring-0.10.0.2
Dependency containers ==0.5.0.0: using containers-0.5.0.0
Dependency directory ==1.2.0.1: using directory-1.2.0.1
Dependency filepath ==1.3.0.1: using filepath-1.3.0.1
Dependency mtl ==2.1.2: using mtl-2.1.2
Dependency network ==2.4.1.2: using network-2.4.1.2
Dependency pretty ==1.1.1.0: using pretty-1.1.1.0
Dependency process ==1.1.0.2: using process-1.1.0.2
Dependency random ==1.0.1.1: using random-1.0.1.1
Dependency stm ==2.4.2: using stm-2.4.2
Dependency time ==1.4.0.1: using time-1.4.0.1
Dependency unix ==2.6.0.1: using unix-2.6.0.1
Dependency zlib ==0.5.4.1: using zlib-0.5.4.1

/var/folders/jt/ywln8_hn75q1yfkhnpcs1bzh0000gn/T/51744.c:1:12:
     warning: control reaches end of non-void function [-Wreturn-type]
int foo() {}
           ^
1 warning generated.
Using Cabal-1.16.0 compiled by ghc-7.6
Using compiler: ghc-7.6.3
Using install prefix:
/Users/username/Library/Haskell/ghc-7.6.3/lib/cabal-install-1.20.0.0
Binaries installed in:
/Users/username/Library/Haskell/ghc-7.6.3/lib/cabal-install-1.20.0.0/bin
Libraries installed in:
/Users/username/Library/Haskell/ghc-7.6.3/lib/cabal-install-1.20.0.0/lib
Private binaries installed in:
/Users/username/Library/Haskell/ghc-7.6.3/lib/cabal-install-1.20.0.0/libexec
Data files installed in:
/Users/username/Library/Haskell/ghc-7.6.3/lib/cabal-install-1.20.0.0/share
Documentation installed in:
/Users/username/Library/Haskell/ghc-7.6.3/lib/cabal-install-1.20.0.0/doc
Using alex version 3.0.5 found on system at: /usr/bin/alex
Using ar found on system at: /usr/bin/ar
No c2hs found
No cpphs found
No ffihugs found
Using gcc version 4.2.1 found on system at: /usr/bin/gcc
Using ghc version 7.6.3 found on system at: /usr/bin/ghc
Using ghc-pkg version 7.6.3 found on system at: /usr/bin/ghc-pkg
No greencard found
Using haddock version 2.13.2 found on system at: /usr/bin/haddock
Using happy version 1.18.10 found on system at: /usr/bin/happy
No hmake found
Using hpc version 0.6 found on system at: /usr/bin/hpc
Using hsc2hs version 0.67 found on system at: /usr/bin/hsc2hs
No hscolour found
No hugs found
No jhc found
Using ld found on system at: /usr/bin/ld
No lhc found
No lhc-pkg found
No nhc98 found
Using pkg-config version 0.28 found on system at: /usr/local/bin/pkg-config
Using ranlib found on system at: /usr/bin/ranlib
Using strip found on system at: /usr/bin/strip
Using tar found on system at: /usr/bin/tar
No uhc found
creating dist/build
creating dist/build/autogen
Building cabal-install-1.20.0.0...
Preprocessing executable 'cabal' for cabal-install-1.20.0.0...
Building executable cabal...
creating dist/build/cabal
creating dist/build/cabal/cabal-tmp
Building C Sources.
creating dist/build/cabal/cabal-tmp
/usr/bin/ghc -c -odir dist/build/cabal/cabal-tmp -Idist/build/cabal/cabal-tmp -optc-O2 -package-db dist/package.conf.inplace -package-id Cabal-1.20.0.0-ed0a7e0a5adc8ca1f9e6d405d3a3d56c -package-id HTTP-4000.2.8-cdf033f9d7051824f52cd5101df67509 -package-id array-0.4.0.1-3b78425c10ff2dad7acf7e8c8ae014c3 -package-id base-4.6.0.1-6c351d70a24d3e96f315cba68f3acf57 -package-id bytestring-0.10.0.2-bf7aaeef3f644374cd7d5a9066cd9017 -package-id containers-0.5.0.0-ab1dae9a94cd3cc84e7b2805636ebfa2 -package-id directory-1.2.0.1-b2c415ae3fe3357f80678150b6da5a3c -package-id filepath-1.3.0.1-b12cbe18566fe1532a1fda4c85e31cbe -package-id mtl-2.1.2-94c72af955e94b8d7b2f359dadd0cb62 -package-id network-2.4.1.2-28b12b2ed8a678ffb29bc07483d3d363 -package-id pretty-1.1.1.0-66181c695e6a2e173ba2088cf55cc396 -package-id process-1.1.0.2-d20d01635195e5ac2ebee73032c7fe84 -package-id random-1.0.1.1-ecb94a9408452ed74f22425077442903 -package-id stm-2.4.2-b5d718b1a5f1fbcdb61a336aef0c2130 -package-id time-1.4.0.1-10dc4804a19dc0000fab79908f1a9f50 -package-id unix-2.6.0.1-1b262a42f35f597365016088e0cde399 -package-id zlib-0.5.4.1-13ba81ac0d7e6f3bdf1ee5ddce4e9aab cbits/getnumcores.c
<command line>: cannot satisfy -package-id HTTP-4000.2.8-cdf033f9d7051824f52cd5101df67509
    (use -v for more information)
Failed to install cabal-install-1.20.0.0
World file is already up to date.
cabal: Error: some packages failed to install:
cabal-install-1.20.0.0 failed during the building phase. The exception was:
ExitFailure 1

我對Haskell包裝並不是特別熟悉。 錯誤似乎是說它無法找到包HTTP-4000.2.8-cdf033f9d7051824f52cd5101df67509 。 我不知道校驗和，但從文檔中可以清楚地看到版本4000.2.8確實存在。

我如何清除此錯誤並獲得最新的cabal-install ？

編輯：這是ghc-pkg describe HTTP的輸出，如評論中所要求的：

WARNING: cache is out of date: /Library/Frameworks/GHC.framework/Versions/7.6.3-x86_64/usr/lib/ghc-7.6.3/package.conf.d/package.cache
  use 'ghc-pkg recache' to fix.
name: HTTP
version: 4000.2.8
id: HTTP-4000.2.8-cdf033f9d7051824f52cd5101df67509
license: BSD3
copyright:
maintainer: Ganesh Sittampalam <http@projects.haskell.org>
stability:
homepage: https://github.com/haskell/HTTP
package-url:
synopsis: A library for client-side HTTP
description: The HTTP package supports client-side web programming in Haskell. It lets you set up
             HTTP connections, transmitting requests and processing the responses coming back, all
             from within the comforts of Haskell. It's dependent on the network package to operate,
             but other than that, the implementation is all written in Haskell.
             .
             A basic API for issuing single HTTP requests + receiving responses is provided. On top
             of that, a session-level abstraction is also on offer  (the @BrowserAction@ monad);
             it taking care of handling the management of persistent connections, proxies,
             state (cookies) and authentication credentials required to handle multi-step
             interactions with a web server.
             .
             The representation of the bytes flowing across is extensible via the use of a type class,
             letting you pick the representation of requests and responses that best fits your use.
             Some pre-packaged, common instances are provided for you (@ByteString@, @String@.)
             .
             Here's an example use:
             .
             >
             >    do
             >      rsp <- Network.HTTP.simpleHTTP (getRequest "http://www.haskell.org/")
             >              -- fetch document and return it (as a 'String'.)
             >      fmap (take 100) (getResponseBody rsp)
             >
             >    do
             >      (_, rsp)
             >         <- Network.Browser.browse $ do
             >               setAllowRedirects True -- handle HTTP redirects
             >               request $ getRequest "http://www.haskell.org/"
             >      return (take 100 (rspBody rsp))
category: Network
author: Warrick Gray <warrick.gray@hotmail.com>
exposed: True
exposed-modules: Network.BufferType Network.Stream
                 Network.StreamDebugger Network.StreamSocket Network.TCP
                 Network.HTTP Network.HTTP.Headers Network.HTTP.Base
                 Network.HTTP.Stream Network.HTTP.Auth Network.HTTP.Cookie
                 Network.HTTP.Proxy Network.HTTP.HandleStream Network.Browser
hidden-modules: Network.HTTP.Base64 Network.HTTP.MD5Aux
                Network.HTTP.Utils Paths_HTTP
trusted: False
import-dirs: /Library/Haskell/ghc-7.6.3/lib/HTTP-4000.2.8/lib
library-dirs: /Library/Haskell/ghc-7.6.3/lib/HTTP-4000.2.8/lib
hs-libraries: HSHTTP-4000.2.8
extra-libraries:
extra-ghci-libraries:
include-dirs:
includes:
depends: array-0.4.0.1-3b78425c10ff2dad7acf7e8c8ae014c3
         base-4.6.0.1-6c351d70a24d3e96f315cba68f3acf57
         bytestring-0.10.0.2-bf7aaeef3f644374cd7d5a9066cd9017
         mtl-2.1.2-94c72af955e94b8d7b2f359dadd0cb62
         network-2.4.1.2-28b12b2ed8a678ffb29bc07483d3d363
         old-time-1.1.0.1-4096e5c0be1f1ff8883115216d1bc5d1
         parsec-3.1.3-a8edfa168176dff038c6dcd45a539942
hugs-options:
cc-options:
ld-options:
framework-dirs:
frameworks:
haddock-interfaces: /Library/Haskell/ghc-7.6.3/lib/HTTP-4000.2.8/doc/html/HTTP.haddock
haddock-html: /Library/Haskell/ghc-7.6.3/lib/HTTP-4000.2.8/doc/html
pkgroot: "/Library/Frameworks/GHC.framework/Versions/7.6.3-x86_64/usr/lib/ghc-7.6.3"

Answer 1

該解決方案分為兩部分。

首先，我不得不做ghc-pkg recache 。 然后，我必須通過運行cabal install cabal-install-1.20.0.0明確請求最新版本的cabal-install 。 我不清楚為什么這些步驟中的任何一個都只需要獲得最新版本的基本功能，如cabal-install 。 但至少現在有解決方案。