Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: commodities (user goal)
rejecting: commodities-0.2.0, 0.1.0 (global constraint requires ==0.0.1)
trying: commodities-0.0.1
trying: transformers-0.3.0.0/installed-16a... (dependency of
commodities-0.0.1)
trying: thyme-0.3.5.5 (dependency of commodities-0.0.1)
trying: thyme-0.3.5.5:-lens
trying: profunctors-5.1.1 (dependency of thyme-0.3.5.5:-lens)
trying: comonad-4.2.6 (dependency of profunctors-5.1.1)
trying: transformers-compat-0.4.0.4 (dependency of comonad-4.2.6)
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).