how to cabal-install with ghc-8.rc3 ?

Johannes Waldmann johannes.waldmann at
Mon Apr 11 17:43:07 UTC 2016


I would love to test rc3. Building (with 7.10.3)
from source went fine. But then I cannot cabal-install anything:

random-1.1: installed package info from too old version of Cabal (key field
does not match id field)
Failed to install random-1.1

What is the recommended upgrade path?

( in cabal/cabal-install (current from github)
does not work, tries to download a Cabal version that's not on hackage )

Thanks, J.W.

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