Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: hspec (user goal)
rejecting: hspec-2.2.0, 2.1.10, 2.1.9, 2.1.8, 2.1.7, 2.1.6, 2.1.5, 2.1.4,
2.1.3, 2.1.2, 2.1.1, 2.1.0, 2.0.2, 2.0.1, 2.0.0, 1.12.4, 1.12.3, 1.12.2,
1.12.1, 1.12.0, 1.11.4, 1.11.3, 1.11.2, 1.11.1, 1.11.0, 1.10.0.1, 1.10.0,
1.9.5, 1.9.4, 1.9.3, 1.9.2, 1.9.1, 1.9.0, 1.8.3, 1.8.2, 1.8.1.1, 1.8.1, 1.8.0,
1.7.2.1, 1.7.2, 1.7.1, 1.7.0, 1.6.2, 1.6.1, 1.6.0, 1.5.4, 1.5.3, 1.5.2, 1.5.1,
1.5.0, 1.4.5, 1.4.4, 1.4.3, 1.4.2.3, 1.4.2.2, 1.4.2.1, 1.4.2, 1.4.1.1, 1.4.1,
1.4.0.1, 1.4.0, 1.3.0.2, 1.3.0.1, 1.3.0, 1.2.0.1, 1.2.0, 1.1.3, 1.1.2, 1.1.1,
1.1.0, 1.0.0.1, 1.0.0, 0.9.2.2, 0.9.2.1, 0.9.2, 0.9.1.1, 0.9.1 (global
constraint requires ==0.9.0)
trying: hspec-0.9.0
trying: base-4.8.1.0/installed-4f7... (dependency of hspec-0.9.0)
next goal: transformers (dependency of hspec-0.9.0)
rejecting: transformers-0.4.2.0/installed-21d..., 0.4.3.0, 0.4.2.0, 0.4.1.0,
0.3.0.0 (conflict: hspec => transformers>=0.2.0 && <0.3.0)
trying: transformers-0.2.2.1
rejecting: transformers-0.2.2.1:+applicativeinbase (conflict:
base==4.8.1.0/installed-4f7..., transformers-0.2.2.1:applicativeinbase =>
base>=2 && <4.8)
rejecting: transformers-0.2.2.1:-applicativeinbase (conflict:
base==4.8.1.0/installed-4f7..., transformers-0.2.2.1:applicativeinbase =>
base>=1.0 && <2)
Dependency tree exhaustively searched.