我试图让这个彩色的 ghci 提示工作。我收到以下错误,我怀疑这是由于 cabal 没有更新正确的包。有人有什么想法吗?
; cabal install IPPrint
[...]
System/Unix/Chroot.hs:23:49:
Module `System.Process' does not export `showCommandForUser'
cabal: Error: some packages failed to install:
Extra-1.42 depends on Unixutils-1.52 which failed to install.
Unixutils-1.52 failed during the building phase. The exception was:
ExitFailure 1
ipprint-0.4.1 depends on Unixutils-1.52 which failed to install.
提示应如下所示: