Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: commodities (user goal)
rejecting: commodities-0.2.0 (constraint from user target requires ==0.1.0)
trying: commodities-0.1.0
trying: array-0.5.1.1/installed-0.5... (dependency of stm-2.4.4.1)
trying: comonad-5 (dependency of profunctors-5.2)
next goal: representable-functors (dependency of commodities-0.1.0)
rejecting: representable-functors-3.2.0.2, representable-functors-3.2.0.1
(conflict: comonad==5, representable-functors => comonad>=3 && <4)
rejecting: representable-functors-3.1, representable-functors-3.0.1 (conflict:
array==0.5.1.1/installed-0.5..., representable-functors => array>=0.3.0.2 &&
<0.5)
rejecting: representable-functors-3.0.0.3, representable-functors-3.0.0.2,
representable-functors-3.0.0.1, representable-functors-3.0,
representable-functors-2.5, representable-functors-2.4.0.2,
representable-functors-2.4.0.1, representable-functors-2.4,
representable-functors-2.2.1.1, representable-functors-2.2.1,
representable-functors-2.2, representable-functors-2.1.2,
representable-functors-2.1, representable-functors-2.0.2,
representable-functors-2.0.1, representable-functors-2.0.0.5,
representable-functors-2.0.0.4, representable-functors-2.0.0.3,
representable-functors-2.0.0.1, representable-functors-2.0,
representable-functors-1.8.0, representable-functors-0.5.0,
representable-functors-0.4.4, representable-functors-0.4.3,
representable-functors-0.4.2, representable-functors-0.4.1,
representable-functors-0.4.0, representable-functors-0.3.0.3,
representable-functors-0.3.0.2, representable-functors-0.3.0.1,
representable-functors-0.3.0, representable-functors-0.2.0,
representable-functors-0.1.0.2, representable-functors-0.1.0.1,
representable-functors-0.1.0 (conflict: commodities =>
representable-functors>=3.0.1)
Backjump limit reached (currently 2000, change with --max-backjumps or try to
run with --reorder-goals).