Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: smtp-mail (user goal)
rejecting: smtp-mail-0.1.4.6, smtp-mail-0.1.4.5, smtp-mail-0.1.4.4,
smtp-mail-0.1.4.3, smtp-mail-0.1.4.2, smtp-mail-0.1.4.1, smtp-mail-0.1.4.0,
smtp-mail-0.1.3.0, smtp-mail-0.1.2.0, smtp-mail-0.1.1.0 (constraint from user
target requires ==0.1.0.0)
trying: smtp-mail-0.1.0.0
next goal: base (dependency of smtp-mail-0.1.0.0)
rejecting: base-4.9.0.0/installed-4.9... (conflict: smtp-mail => base==4.5.*)
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.