Resolving dependencies...
cabal: Could not resolve dependencies:
trying: dash-haskell-1.1.0.2 (user goal)
next goal: ghc (dependency of dash-haskell-1.1.0.2)
rejecting: ghc-7.8.3/installed-0af... (conflict: dash-haskell => ghc>=7.10.1)
Dependency tree exhaustively searched.