ghc-pkg检查黑线鳕警告

Question

在全新安装haskell-platform(via homebrew)(GHC x64 7.6.3)OSX 10.9.2时,我在运行时收到以下警告ghc-pkg check(见下文)

Warning: haddock-interfaces: /Users/user/.cabal/share/doc/x86_64-osx-ghc-7.6.3/ghc-mod-3.1.7/html/ghc-mod.haddock doesn't exist or isn't a file
Warning: haddock-html: /Users/user/.cabal/share/doc/x86_64-osx-ghc-7.6.3/ghc-mod-3.1.7/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /Users/user/.cabal/share/doc/x86_64-osx-ghc-7.6.3/hlint-1.8.59/html/hlint.haddock doesn't exist or isn't a file
Warning: haddock-html: /Users/user/.cabal/share/doc/x86_64-osx-ghc-7.6.3/hlint-1.8.59/html doesn't exist or isn't a directory
Warning: haddock-html: /usr/local/Cellar/haskell-platform/2013.2.0.0/share/doc/mtl-2.1.2/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /usr/local/Cellar/haskell-platform/2013.2.0.0/share/doc/transformers-0.3.0.0/html/transformers.haddock doesn't exist or isn't a file
Warning: haddock-html: /usr/local/Cellar/haskell-platform/2013.2.0.0/share/doc/transformers-0.3.0.0/html doesn't exist or isn't a directory
Warning: haddock-interfaces: /usr/local/Cellar/haskell-platform/2013.2.0.0/share/doc/case-insensitive-1.0.0.1/html/case-insensitive.haddock doesn't exist or isn't a file
Warning: haddock-html: /usr/local/Cellar/haskell-platform/2013.2.0.0/share/doc/case-insensitive-1.0.0.1/html doesn't exist or isn't a directory

根据文档:

ghc-pkg check
    Check the consistency of package depenencies and list broken packages.
    Accepts the --simple-output flag.

我尝试运行以下命令来生成haddock文档无济于事:

sudo cabal install --reinstall --force-reinstalls --enable-documentation

该命令来自用户在haskell邮件列表上的类似问题. http://www.haskell.org/pipermail/glasgow-haskell-users/2012-February/021780.html

如何安抚ghc-pkg check和删除这些警告？

CAVEAT:当我说"全新安装"时,我的意思是我已经从头开始安装了Haskell平台,并在全局安装cabal-1.18.0.3并将cabal的bin目录添加到我的路径中.

Answer 1

那些黑线鳕警告很烦人，但它们不会引起任何问题，AFAIK。我认为警告已在 Cabal 1.18 中修复。我再也见不到他们了。

编辑：好的，所以我们需要遵循 kosmikus 的建议......

mv ~/.cabal ~/.cabal.SAVE
cabal update

这将创建文件 ~/.cabal/config。如果您愿意，您可以编辑此文件。

现在尝试构建一些东西，看看问题是否消失了。