Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: network-info (user goal)
rejecting: network-info-0.2.0.8, network-info-0.2.0.7, network-info-0.2.0.6,
network-info-0.2.0.5, network-info-0.2.0.4, network-info-0.2.0.3,
network-info-0.2.0.2, network-info-0.2.0.1, network-info-0.2,
network-info-0.1.0.1 (constraint from user target requires ==0.1)
trying: network-info-0.1
next goal: base (dependency of network-info-0.1)
rejecting: base-4.9.0.0/installed-4.9... (conflict: network-info => base<0)
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.