Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: flower (user goal)
rejecting: flower-0.7.2, 0.7, 0.6.5, 0.6.3, 0.6.1, 0.6, 0.5, 0.4, 0.3, 0.2,
0.1.2, 0.1.1 (global constraint requires ==0.1)
trying: flower-0.1
trying: base-4.8.1.0/installed-4f7... (dependency of flower-0.1)
next goal: bio (dependency of flower-0.1)
rejecting: bio-0.5.3, 0.5.2, 0.5.1, 0.5.0.1, 0.5, 0.4.8, 0.4.7, 0.4.6, 0.4.5,
0.4.4 (conflict: binary==0.7.5.0/installed-072..., bio => binary>=0.4 && <0.5)
rejecting: bio-0.4 (conflict: base==4.8.1.0/installed-4f7..., bio => base>=3
&& <4)
trying: bio-0.3.5
next goal: QuickCheck (dependency of bio-0.3.5)
rejecting: QuickCheck-2.8.1, 2.8, 2.7.6, 2.7.5, 2.7.4, 2.7.3, 2.7.2, 2.7.1,
2.7, 2.6, 2.5.1.1, 2.5.1, 2.5, 2.4.2, 2.4.1.1, 2.4.1, 2.4.0.1, 2.4, 2.3.0.2,
2.3.0.1, 2.3, 2.2, 2.1.2, 2.1.1.1, 2.1.1, 2.1.0.3, 2.1.0.2, 2.1.0.1, 2.1
(conflict: bio => QuickCheck<2)
trying: QuickCheck-1.2.0.1
rejecting: QuickCheck-1.2.0.1:+base3 (conflict:
base==4.8.1.0/installed-4f7..., QuickCheck-1.2.0.1:base3 => base>=3 && <4)
trying: QuickCheck-1.2.0.1:-base3
rejecting: QuickCheck-1.2.0.1:+base4 (conflict:
base==4.8.1.0/installed-4f7..., QuickCheck-1.2.0.1:base4 => base>=4 && <4.8)
rejecting: QuickCheck-1.2.0.1:-base4 (conflict:
base==4.8.1.0/installed-4f7..., QuickCheck-1.2.0.1:base4 => base<3)
Dependency tree exhaustively searched.