Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hemokit (user goal)
rejecting: hemokit-0.6.6, 0.6.5 (global constraint requires ==0.6.4)
trying: hemokit-0.6.4
trying: base-4.8.1.0/installed-4f7... (dependency of hemokit-0.6.4)
trying: transformers-0.4.2.0/installed-21d... (dependency of hemokit-0.6.4)
next goal: optparse-applicative (dependency of hemokit-0.6.4)
rejecting: optparse-applicative-0.12.0.0, 0.11.0.2, 0.11.0.1, 0.11.0, 0.10.0
(conflict: hemokit => optparse-applicative>=0.7.0 && <0.10.0)
rejecting: optparse-applicative-0.9.1.1, 0.9.1, 0.9.0 (conflict:
base==4.8.1.0/installed-4f7..., optparse-applicative => base>=4 && <4.8)
rejecting: optparse-applicative-0.8.1, 0.8.0.1, 0.8.0, 0.7.0.2, 0.7.0.1, 0.7.0
(conflict: transformers==0.4.2.0/installed-21d..., optparse-applicative =>
transformers>=0.2 && <0.4)
rejecting: optparse-applicative-0.6.0, 0.5.2.1, 0.5.2, 0.5.1, 0.5.0, 0.4.3,
0.4.2, 0.4.1, 0.4.0, 0.3.2, 0.3.1, 0.3.0, 0.2.0, 0.1.1, 0.1.0, 0.0.1
(conflict: hemokit => optparse-applicative>=0.7.0 && <0.10.0)
Dependency tree exhaustively searched.