【发布时间】:2014-12-13 11:28:22
【问题描述】:
这可能是一场斗争,因为我在 Windows 上......我最近尝试使用 Git Bash 摆脱阴谋集团:
$ rm -R ~/AppData/Roaming/ghc ~/AppData/Roaming/cabal
$ cabal update
$ cabal install cabal-install
$ cabal install http-conduit-browser
结果:
Failed to install http-conduit-1.9.6
Last 10 lines of the build log ( C:\Users\T\AppData\Roaming\cabal\logs\http-conduit-1.9.6.log ):
so you can specify the instance context yourself
When deriving the instance for (Read Cookie)
Network\HTTP\Conduit\Types.hs:239:19:
No instance for (Show UTCTime)
arising from the third field of `Cookie' (type `UTCTime')
Possible fix:
use a standalone 'deriving instance' declaration,
so you can specify the instance context yourself
When deriving the instance for (Show Cookie)
cabal.exe: Error: some packages failed to install:
http-conduit-1.9.6 failed during the building phase. The exception was:
ExitFailure 1
http-conduit-browser-1.9.0.2 depends on http-conduit-1.9.6 which failed to
install.
尝试只安装http-conduit 工作正常,但我似乎根本无法安装http-conduit-browser。如果这不起作用,还有其他图书馆吗?我也尝试过shpider,但由于curl 库,它不起作用。
【问题讨论】:
-
你能把整个日志贴出来
C:\Users\T\AppData\Roaming\cabal\logs\http-conduit-1.9.6.log吗? -
我从下面的答案中得到了建议,并改用了 Wreq。我会发布日志,但我已经摧毁了我的阴谋集团。如果其他人遇到同样的问题,Wreq 很容易设置和使用。
标签: haskell cabal http-conduit