Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: crypto-api (user goal)
rejecting: crypto-api-0.13.2, 0.13, 0.12.2.2, 0.12.2.1, 0.12.2, 0.12.1, 0.12,
0.11, 0.10.2, 0.10.1, 0.10, 0.9, 0.8, 0.7, 0.6.4, 0.6.3, 0.6.2.1, 0.6.2, 0.6.1
(global constraint requires ==0.6)
trying: crypto-api-0.6
next goal: base (dependency of crypto-api-0.6)
rejecting: base-4.8.1.0/installed-4f7... (conflict: crypto-api => base==4.* &&
<0)
rejecting: base-4.8.1.0, 4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0,
4.5.1.0, 4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1,
4.2.0.0, 4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires
installed instance)
Dependency tree exhaustively searched.