On Ubuntu I usually rely on hvr's ppa to install ghc and cabal
https://launchpad.net/~hvr/+archive/ubuntu/ghc
and then I'd use stackage to have a set of libraries you can rely on install
http://www.stackage.org/lts
sorry if this is a non-answer, anyhow if your error is the same as on
that askubuntu question it seems unrelated to Haskell, have you tried
`apt-get install -f` like mentioned in the comment?
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