Resolving dependencies...
cabal: Could not resolve dependencies:
trying: seqaid-0.4.0.0 (dependency of leaky-0.1.7.0)
next goal: ghc (dependency of seqaid-0.4.0.0)
rejecting: ghc-8.0.1.20161018/installed-8.0... (conflict: seqaid =>
ghc==7.10.* || >=7.6 && <7.10)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).