module 'free-4.6.1:Main' is defined in multiple files

[Mikhail Glushenkov]

Hi,

On 24 March 2014 18:54, Mateusz Kowalczyk <fuuzetsu at fuuzetsu.co.uk> wrote:
>
> PS: How does one go about downgrading Cabal and cabal-install? If we
> wanted to check whether cabal is the problem, how?

You can force the Cabal lib version to use (in case you have multiple
versions installed) with 'install --cabal-lib-version'. To downgrade
cabal-install itself to some older version you need to compile and
install that version.