Question

我在macOS Sierra上安装Haskell框架Snap时遇到问题。每当我安装它时，我都会收到以下消息：

Resolving dependencies...
Configuring securemem-0.1.9...
Configuring skein-1.0.9.4...
Configuring configurator-0.3.0.0...
Configuring cryptonite-0.24...
Building configurator-0.3.0.0...
Building securemem-0.1.9...
Building skein-1.0.9.4...
Failed to install configurator-0.3.0.0
Build log ( /Users/nicholas/.cabal/logs/ghc-8.2.1/configurator-0.3.0.0-6dySPcNCURWFswtMXJvzho.log ):
cabal: Entering directory '/tmp/cabal-tmp-66175/configurator-0.3.0.0'
Configuring configurator-0.3.0.0...
Preprocessing library for configurator-0.3.0.0..
Building library for configurator-0.3.0.0..
<command line>: cannot satisfy -package-id attoparsec-0.13.2.0-5dp4kBDsiGY4dQpLKbD5rk: 
    attoparsec-0.13.2.0-5dp4kBDsiGY4dQpLKbD5rk is unusable due to shadowed dependencies:
      scientific-0.3.5.1-L0qYzdp0wpz8rO8gircNSR text-1.2.2.2-EGUst8sqNAZCw1xLPcmcMH
    (use -v for more information)
cabal: Leaving directory '/tmp/cabal-tmp-66175/configurator-0.3.0.0'
Configuring transformers-base-0.4.4...
Building cryptonite-0.24...
Building transformers-base-0.4.4...
Installed securemem-0.1.9
Installed transformers-base-0.4.4
Installed skein-1.0.9.4
Installed cryptonite-0.24
Updating documentation index
/Users/nicholas/Library/Haskell/share/doc/x86_64-osx-ghc-8.2.1/index.html
cabal: Error: some packages failed to install:
configurator-0.3.0.0-6dySPcNCURWFswtMXJvzho failed during the building phase.
The exception was:
ExitFailure 1
snap-1.0.0.2-5CZKyA9EY4oLgkpHYCVfnv depends on snap-1.0.0.2 which failed to
install.

我使用使用自制软件（brew cask install haskell-platform）和cabal版本2.0.0.2安装的Haskell平台。我尝试过使用sudo并删除我的~/.ghc文件

Answer 1

完整的8.2.1二进制平台构建问题刚刚解决：https://mail.haskell.org/pipermail/haskell-cafe/2017-October/127979.html

这可能就是一个例子。

（另见：GHC cannot find libraries on fresh install of Haskell-Platform）

Answer 2

这看起来像是Cabal 2中的一个错误（或者可能是GHC 8.2）。见https://github.com/haskell/cabal/issues/4728。我建议暂时坚持GHC 8.0.2使用cabal 1.24或Stack。我是Stack的情况，版本无关紧要，因为它将使用GHC附带的Cabal版本。

问题在macOS Sierra上安装Snap

2 个答案: