Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hakyll (user goal)
rejecting: hakyll-4.9.2.0, hakyll-4.9.1.0, hakyll-4.9.0.0, hakyll-4.8.3.2,
hakyll-4.8.3.1, hakyll-4.8.3.0, hakyll-4.8.2.0, hakyll-4.8.1.0,
hakyll-4.8.0.1, hakyll-4.8.0.0, hakyll-4.7.5.2, hakyll-4.7.5.1,
hakyll-4.7.5.0, hakyll-4.7.4.0, hakyll-4.7.3.1, hakyll-4.7.3.0,
hakyll-4.7.2.3, hakyll-4.7.2.2, hakyll-4.7.2.1, hakyll-4.7.2.0,
hakyll-4.7.1.0, hakyll-4.7.0.0, hakyll-4.6.9.0, hakyll-4.6.8.1,
hakyll-4.6.8.0, hakyll-4.6.7.1, hakyll-4.6.7.0, hakyll-4.6.6.0,
hakyll-4.6.5.0, hakyll-4.6.4.0, hakyll-4.6.3.0, hakyll-4.6.2.0,
hakyll-4.6.1.1, hakyll-4.6.1.0, hakyll-4.6.0.0, hakyll-4.5.5.1,
hakyll-4.5.5.0, hakyll-4.5.4.0, hakyll-4.5.3.0, hakyll-4.5.2.0,
hakyll-4.5.1.0, hakyll-4.5.0.2, hakyll-4.5.0.1, hakyll-4.5.0.0,
hakyll-4.4.3.2, hakyll-4.4.3.1, hakyll-4.4.3.0, hakyll-4.4.2.0,
hakyll-4.4.1.2, hakyll-4.4.1.1, hakyll-4.4.1.0, hakyll-4.4.0.0,
hakyll-4.3.3.0, hakyll-4.3.2.0, hakyll-4.3.1.0, hakyll-4.3.0.0,
hakyll-4.2.2.0, hakyll-4.2.1.2, hakyll-4.2.1.1, hakyll-4.2.1.0,
hakyll-4.2.0.0, hakyll-4.1.4.0, hakyll-4.1.3.0, hakyll-4.1.2.1,
hakyll-4.1.2.0, hakyll-4.1.1.0, hakyll-4.1.0.0, hakyll-4.0.0.0,
hakyll-3.5.3.0, hakyll-3.5.2.1, hakyll-3.5.2.0, hakyll-3.5.1.0,
hakyll-3.5.0.0, hakyll-3.4.2.1, hakyll-3.4.2.0, hakyll-3.4.1.0,
hakyll-3.4.0.0, hakyll-3.3.0.1, hakyll-3.3.0.0, hakyll-3.2.8.1,
hakyll-3.2.8.0, hakyll-3.2.7.2, hakyll-3.2.7.1, hakyll-3.2.7.0,
hakyll-3.2.6.2, hakyll-3.2.6.1, hakyll-3.2.6.0, hakyll-3.2.5.1,
hakyll-3.2.5.0, hakyll-3.2.4.2, hakyll-3.2.4.1, hakyll-3.2.4.0,
hakyll-3.2.3.2, hakyll-3.2.3.1, hakyll-3.2.3.0, hakyll-3.2.2.0,
hakyll-3.2.1.0, hakyll-3.2.0.10, hakyll-3.2.0.9, hakyll-3.2.0.8,
hakyll-3.2.0.7, hakyll-3.2.0.6, hakyll-3.2.0.5, hakyll-3.2.0.4,
hakyll-3.2.0.3, hakyll-3.2.0.2, hakyll-3.2.0.1, hakyll-3.2.0.0,
hakyll-3.1.2.8, hakyll-3.1.2.7, hakyll-3.1.2.6, hakyll-3.1.2.5,
hakyll-3.1.2.4, hakyll-3.1.2.3, hakyll-3.1.2.2, hakyll-3.1.2.1,
hakyll-3.1.2.0, hakyll-3.1.1.2, hakyll-3.1.1.1, hakyll-3.1.1.0,
hakyll-3.1.0.0, hakyll-3.0.2.2, hakyll-3.0.2.1, hakyll-3.0.2.0,
hakyll-3.0.1.4, hakyll-3.0.1.3 (constraint from user target requires
==3.0.1.2)
trying: hakyll-3.0.1.2
trying: base-4.9.0.0/installed-4.9... (dependency of hakyll-3.0.1.2)
next goal: strict-concurrency (dependency of hakyll-3.0.1.2)
rejecting: strict-concurrency-0.2.4.1, strict-concurrency-0.2.4 (conflict:
base==4.9.0.0/installed-4.9..., strict-concurrency => base>=4 && <4.6)
rejecting: strict-concurrency-0.2.3 (conflict: base==4.9.0.0/installed-4.9...,
strict-concurrency => base>=3 && <4.3)
rejecting: strict-concurrency-0.2.2, strict-concurrency-0.2.1 (conflict:
base==4.9.0.0/installed-4.9..., strict-concurrency => base>=3 && <4)
rejecting: strict-concurrency-0.2 (conflict: base==4.9.0.0/installed-4.9...,
strict-concurrency => base<4.3)
rejecting: strict-concurrency-0.1 (conflict: hakyll =>
strict-concurrency>=0.2)
Dependency tree exhaustively searched.