Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: lenses (user goal)
rejecting: lenses-0.1.7, 0.1.6, 0.1.5, 0.1.4 (global constraint requires
==0.1.3)
trying: lenses-0.1.3
trying: base-4.8.1.0/installed-4f7... (dependency of lenses-0.1.3)
next goal: template-haskell (dependency of lenses-0.1.3)
rejecting: template-haskell-2.10.0.0/installed-90e..., 2.10.0.0, 2.9.0.0,
2.8.0.0, 2.7.0.0, 2.6.0.0, 2.5.0.0, 2.4.0.1, 2.4.0.0 (conflict: lenses =>
template-haskell>=2.3 && <2.4)
rejecting: template-haskell-2.3.0.1, 2.3.0.0 (conflict:
base==4.8.1.0/installed-4f7..., template-haskell => base<4.3)
rejecting: template-haskell-2.2.0.0 (conflict: lenses => template-haskell>=2.3
&& <2.4)
Dependency tree exhaustively searched.