[英]cabal install cabal-install could not resolve dependencies
我剛剛做了brew install haskell-platform
,它安裝了Glorious Glasgow Haskell編譯系統7.6.3版 。
$ cabal --version
cabal-install version 1.16.0.2
using version 1.16.0 of the Cabal library
$ cabal update
Downloading the latest package list from hackage.haskell.org
Note: there is a new version of cabal-install available.
To upgrade, run: cabal install cabal-install
$ cabal install cabal-install
Resolving dependencies...
cabal: Could not resolve dependencies:
trying: cabal-install-1.20.0.3
rejecting: zlib-0.5.4.1, 0.5.4.0, 0.5.3.3, 0.5.3.2, 0.5.3.1, 0.5.2.0, 0.5.0.0,
0.4.0.4, 0.4.0.3, 0.4.0.2, 0.4.0.1, 0.4, 0.3, 0.2 (global constraint requires
installed instance)
我不明白這里的問題是什么,我剛剛第一次安裝了所有東西。
我在安裝之前只有一個糟糕的~/.cabal/config
文件。
我做到了
$ rm -rf ~/.ghc ~/.cabal
$ brew rm ghc
$ brew rm haskell-platform
$ brew install haskell-platform
它安裝好了
$ cabal install cabal-install
Resolving dependencies...
Downloading Cabal-1.20.0.2...
...
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