Cabal更新:无法下载

Question

尽管多次尝试,Cabal都没有更新.为什么Cabal不能正常工作？我该怎么办？最后更新的日期可追溯至89天.

Windows PowerShell
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PS C:\WINDOWS\system32> ghc --version
The Glorious Glasgow Haskell Compilation System, version 8.2.2

PS C:\WINDOWS\system32> cabal --version
cabal-install version 2.0.0.1
compiled using version 2.0.1.1 of the Cabal library
PS C:\WINDOWS\system32>

PS C:\WINDOWS\system32> cabal update
Downloading the latest package list from hackage.haskell.org
dieVerbatim: user error (cabal.exe: Failed to download
http://objects-us-west-1.dream.io/hackage-mirror/01-index.tar.gz : No Status
Code could be parsed from response: Eccezione durante una richiesta WebClient.
)

Answer 1

根据这个git问题,有一个使用的解决方法

 cabal --http-transport=plain-http update

代替.(强制cabal不使用powershell的webclient)