Try
cabal install --allow-newer=base -j3 cabal-install
Once GHC 7.10 is out we might make another Cabal 1.20 release to bump the
upper bound on the base dependency if 1.20 is indeed compatible with the
latest base.
On Thu, Jan 1, 2015 at 12:08 PM, George Colpitts
$ 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 bash-3.2$ *cabal install -j3 cabal-install * *...*
*Resolving dependencies...cabal: Could not resolve dependencies:* trying: cabal-install-1.20.0.6 (user goal) trying: base-4.8.0.0/installed-779... (dependency of cabal-install-1.20.0.6) next goal: process (dependency of cabal-install-1.20.0.6) rejecting: process-1.2.1.0/installed-2db... (conflict: unix==2.7.1.0, process => unix==2.7.1.0/installed-4ae...) trying: process-1.2.1.0 next goal: directory (dependency of cabal-install-1.20.0.6) rejecting: directory-1.2.1.1/installed-b08... (conflict: directory => time==1.5.0.1/installed-c23..., cabal-install => time>=1.1 && <1.5) rejecting: directory-1.2.1.0 (conflict: base==4.8.0.0/installed-779..., directory => base>=4.5 && <4.8) rejecting: directory-1.2.0.1, 1.2.0.0 (conflict: base==4.8.0.0/installed-779..., directory => base>=4.2 && <4.7) rejecting: directory-1.1.0.2 (conflict: base==4.8.0.0/installed-779..., directory => base>=4.2 && <4.6) rejecting: directory-1.1.0.1 (conflict: base==4.8.0.0/installed-779..., directory => base>=4.2 && <4.5) rejecting: directory-1.1.0.0 (conflict: base==4.8.0.0/installed-779..., directory => base>=4.2 && <4.4) rejecting: directory-1.0.1.2, 1.0.1.1, 1.0.1.0, 1.0.0.3, 1.0.0.0 (conflict: process => directory>=1.1 && <1.3) Dependency tree exhaustively searched.
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