Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: esqueleto (user goal)
rejecting: esqueleto-2.4.3, esqueleto-2.4.2, esqueleto-2.4.1, esqueleto-2.4.0,
esqueleto-2.3.0, esqueleto-2.2.12, esqueleto-2.2.11, esqueleto-2.2.10,
esqueleto-2.2.9, esqueleto-2.2.8, esqueleto-2.2.7, esqueleto-2.2.6,
esqueleto-2.2.5, esqueleto-2.2.4, esqueleto-2.2.3, esqueleto-2.2.2,
esqueleto-2.2.1, esqueleto-2.2, esqueleto-2.1.3, esqueleto-2.1.2.3,
esqueleto-2.1.2.2, esqueleto-2.1.2.1, esqueleto-2.1.2, esqueleto-2.1.1,
esqueleto-2.1.0, esqueleto-2.0.3, esqueleto-2.0.2 (constraint from user target
requires ==2.0.1)
trying: esqueleto-2.0.1
next goal: base (dependency of esqueleto-2.0.1)
rejecting: base-4.9.0.0/installed-4.9... (conflict: esqueleto => base>=4.5 &&
<4.8)
rejecting: base-4.9.0.0, base-4.8.2.0, base-4.8.1.0, base-4.8.0.0,
base-4.7.0.2, base-4.7.0.1, base-4.7.0.0, base-4.6.0.1, base-4.6.0.0,
base-4.5.1.0, base-4.5.0.0, base-4.4.1.0, base-4.4.0.0, base-4.3.1.0,
base-4.3.0.0, base-4.2.0.2, base-4.2.0.1, base-4.2.0.0, base-4.1.0.0,
base-4.0.0.0, base-3.0.3.2, base-3.0.3.1 (constraint from non-upgradeable
package requires installed instance)
Dependency tree exhaustively searched.