11 Jul
2016
11 Jul
'16
10:55 a.m.
On July 11, 2016 at 3:49:46 AM, Magicloud Magiclouds (magicloud.magiclouds@gmail.com) wrote:
Hi, I update my GHC to 8.0.1 and failed to install any packages since then. If I use cabal, I got 'installed package info from too old version of Cabal (key field does not match id field)' for every package. If I use Setup.hs, I got 'Configuring Cabal-1.24.0.0... Setup.hs: ghc-pkg dump failed'. What should I do? Googling did not get me an answer.
The former error can occur if your cabal binary is too old. You can download a newer cabal binary from: https://www.haskell.org/cabal/download.html If the latter error persists, then perhaps your ghc-pkg was not updated along with your ghc? —gershom