Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hakyll (user goal)
rejecting: hakyll-4.7.4.0, 4.7.3.1, 4.7.3.0, 4.7.2.3, 4.7.2.2, 4.7.2.1,
4.7.2.0, 4.7.1.0, 4.7.0.0, 4.6.9.0, 4.6.8.1, 4.6.8.0, 4.6.7.1, 4.6.7.0,
4.6.6.0, 4.6.5.0, 4.6.4.0, 4.6.3.0, 4.6.2.0, 4.6.1.1, 4.6.1.0, 4.6.0.0,
4.5.5.1, 4.5.5.0, 4.5.4.0, 4.5.3.0, 4.5.2.0, 4.5.1.0, 4.5.0.2, 4.5.0.1,
4.5.0.0, 4.4.3.2, 4.4.3.1, 4.4.3.0, 4.4.2.0, 4.4.1.2, 4.4.1.1, 4.4.1.0,
4.4.0.0, 4.3.3.0, 4.3.2.0, 4.3.1.0, 4.3.0.0, 4.2.2.0, 4.2.1.2, 4.2.1.1,
4.2.1.0, 4.2.0.0, 4.1.4.0, 4.1.3.0, 4.1.2.1, 4.1.2.0, 4.1.1.0, 4.1.0.0,
4.0.0.0, 3.5.3.0, 3.5.2.1, 3.5.2.0, 3.5.1.0, 3.5.0.0, 3.4.2.1 (global
constraint requires ==3.4.2.0)
trying: hakyll-3.4.2.0
trying: base-4.8.1.0/installed-4f7... (dependency of hakyll-3.4.2.0)
next goal: time (dependency of hakyll-3.4.2.0)
rejecting: time-1.5.0.1/installed-c20..., 1.5.0.1, 1.5 (conflict: hakyll =>
time>=1.1 && <1.5)
trying: time-1.4.2
next goal: deepseq (dependency of time-1.4.2)
rejecting: deepseq-1.4.1.1/installed-8fb..., 1.4.1.2, 1.4.1.1, 1.4.1.0,
1.4.0.0 (conflict: time => deepseq>=1.1 && <1.4)
rejecting: deepseq-1.3.0.2 (conflict: base==4.8.1.0/installed-4f7..., deepseq
=> base>=4.3 && <4.8)
trying: deepseq-1.3.0.1
next goal: array (dependency of deepseq-1.3.0.1)
rejecting: array-0.5.1.0/installed-d42..., 0.5.1.0, 0.5.0.0 (conflict: deepseq
=> array>=0.1 && <0.5)
rejecting: array-0.4.0.1 (conflict: base==4.8.1.0/installed-4f7..., array =>
base>=4.2 && <4.7)
rejecting: array-0.4.0.0 (conflict: base==4.8.1.0/installed-4f7..., array =>
base>=4.2 && <4.6)
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, 0.1.0.0 (conflict: base==4.8.1.0/installed-4f7...,
array => base<4.3)
Dependency tree exhaustively searched.