Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hurdle (user goal)
rejecting: hurdle-0.4.0 (global constraint requires ==0.3.0)
trying: hurdle-0.3.0
trying: base-4.8.1.0/installed-4f7... (dependency of hurdle-0.3.0)
next goal: containers (dependency of hurdle-0.3.0)
rejecting: containers-0.5.6.2/installed-2de... (conflict: containers =>
array==0.5.1.0/installed-d42..., hurdle => array>=0.2.0.0 && <0.4)
trying: containers-0.5.6.3
next goal: deepseq (dependency of containers-0.5.6.3)
rejecting: deepseq-1.4.1.1/installed-8fb... (conflict: deepseq =>
array==0.5.1.0/installed-d42..., hurdle => array>=0.2.0.0 && <0.4)
trying: deepseq-1.4.1.2
next goal: array (dependency of hurdle-0.3.0)
rejecting: array-0.5.1.0/installed-d42..., 0.5.1.0, 0.5.0.0, 0.4.0.1, 0.4.0.0
(conflict: hurdle => array>=0.2.0.0 && <0.4)
rejecting: array-0.3.0.3 (conflict: base==4.8.1.0/installed-4f7..., array =>
base>=4.2 && <4.5)
rejecting: array-0.3.0.2, 0.3.0.1 (conflict: base==4.8.1.0/installed-4f7...,
array => base>=4.2 && <4.4)
rejecting: array-0.3.0.0 (conflict: base==4.8.1.0/installed-4f7..., array =>
base>=3 && <4.4)
rejecting: array-0.2.0.0 (conflict: deepseq => array>=0.3 && <0.6)
rejecting: array-0.1.0.0 (conflict: hurdle => array>=0.2.0.0 && <0.4)
Dependency tree exhaustively searched.