Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: mega-sdist (user goal)
rejecting: mega-sdist-0.2.10.4, 0.2.10.3, 0.2.10.2, 0.2.10.1, 0.2.10, 0.2.0.9,
0.2.0.8, 0.2.0.7, 0.2.0.6, 0.2.0.5 (global constraint requires ==0.2.0.4)
trying: mega-sdist-0.2.0.4
trying: transformers-0.3.0.0/installed-16a... (dependency of
mega-sdist-0.2.0.4)
trying: http-conduit-2.1.5 (dependency of mega-sdist-0.2.0.4)
trying: monad-control-1.0.0.4 (dependency of http-conduit-2.1.5)
trying: transformers-compat-0.4.0.4 (dependency of monad-control-1.0.0.4)
trying: transformers-compat-0.4.0.4:-two
rejecting: transformers-compat-0.4.0.4:-three (conflict:
transformers==0.3.0.0/installed-16a..., transformers-compat-0.4.0.4:three =>
transformers>=0.4.1 && <0.5)
rejecting: transformers-compat-0.4.0.4:+three (manual flag can only be changed
explicitly)
Backjump limit reached (change with --max-backjumps).