Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: tagged (user goal)
rejecting: tagged-0.8.0.1, 0.8, 0.7.3, 0.7.2, 0.7.1, 0.7, 0.6.1, 0.6, 0.5,
0.4.5, 0.4.4, 0.4.3, 0.4.2.1, 0.4.2, 0.4.1, 0.4, 0.3, 0.2.3.1, 0.2.3, 0.2.2.3,
0.2.2.2, 0.2.2.1, 0.2.2 (global constraint requires ==0.2.1)
trying: tagged-0.2.1
trying: base-4.7.0.1/installed-e4b... (dependency of tagged-0.2.1)
next goal: semigroups (dependency of tagged-0.2.1)
rejecting: semigroups-0.16.2.2, 0.16.2.1, 0.16.2, 0.16.1, 0.16.0.1, 0.16,
0.15.4, 0.15.3, 0.15.2, 0.15.1, 0.15, 0.14, 0.13.0.1, 0.13, 0.12.2, 0.12.1,
0.12.0.1, 0.12, 0.11, 0.10, 0.9.2, 0.9.1, 0.9, 0.8.5, 0.8.4.1, 0.8.4, 0.8.3.2,
0.8.3.1, 0.8.3, 0.8.2, 0.8.0.1, 0.8, 0.7.1.2, 0.7.1.1, 0.7.1, 0.7.0, 0.6.1,
0.6, 0.5.0.2, 0.5.0.1, 0.5.0 (conflict: tagged => semigroups>=0.4 && <0.5)
rejecting: semigroups-0.4.0 (conflict: base==4.7.0.1/installed-e4b...,
semigroups => base>=4 && <4.4)
rejecting: semigroups-0.3.4.2, 0.3.4.1, 0.3.4, 0.3.3, 0.3.2, 0.3.1, 0.3.0,
0.2.0, 0.1.0 (conflict: tagged => semigroups>=0.4 && <0.5)
Dependency tree exhaustively searched.