Re: [ANNOUNCE] GHC 8.0.1 release candidate 2

Ben Gamari writes:

Hello everyone,

snip

* Compatibility with earlier Cabal versions should be a bit more robust.

Unfortunately this characterization was perhaps a bit optimistic. Sadly the errors provided by GHC when used with an older Cabal aren't any better in -rc2 than they were in -rc1. I've opened #11558 to track this issue. Users seeing unexpected missing interface file errors need to update Cabal and cabal-install from git. This must be done using GHC 7.10 at the moment as some of Cabal's build dependencies lack a build plan with 8.0. $ git clone git://github.com/haskell/cabal $ cd cabal $ cabal update $ cabal install Cabal/ cabal-install/ Cheers, - Ben