Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: plugins (user goal)
rejecting: plugins-1.5.5.0, 1.5.4.0, 1.5.3.0, 1.5.2.3, 1.5.2.2, 1.5.2.1,
1.5.1.4, 1.5.1.3, 1.5.1.2, 1.5.1.1 (global constraint requires ==1.5.1)
trying: plugins-1.5.1
next goal: ghc (dependency of plugins-1.5.1)
rejecting: ghc-7.10.2/installed-a64... (conflict: plugins => ghc>=6.10 &&
<7.2)
Dependency tree exhaustively searched.