Hi, On 4 December 2014 at 09:45, Joachim Breitner <mail at joachim-breitner.de> wrote: > is the bug in Cabal or cabal-install? It's in Cabal. So once the new point releases are out, the users will need to run `cabal install cabal-install --constraint="Cabal > 1.20.0.2"`.