Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: snap (user goal)
rejecting: snap-0.14.0.6, 0.14.0.5, 0.14.0.4, 0.14.0.3, 0.14.0.2, 0.14.0.1,
0.14.0, 0.13.3.2, 0.13.3.1 (global constraint requires ==0.13.3)
trying: snap-0.13.3
trying: base-4.8.1.0/installed-4f7... (dependency of snap-0.13.3)
next goal: template-haskell (dependency of snap-0.13.3)
rejecting: template-haskell-2.10.0.0/installed-90e..., 2.10.0.0 (conflict:
snap => template-haskell>=2.2 && <2.10)
rejecting: template-haskell-2.9.0.0 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base==4.7.*)
rejecting: template-haskell-2.8.0.0 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base==4.6.*)
rejecting: template-haskell-2.7.0.0 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base==4.5.*)
rejecting: template-haskell-2.6.0.0 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base==4.4.*)
rejecting: template-haskell-2.5.0.0 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base==4.3.*)
rejecting: template-haskell-2.4.0.1 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base==4.2.*)
rejecting: template-haskell-2.4.0.0 (conflict: base==4.8.1.0/installed-4f7...,
template-haskell => base>=3 && <4.3)
rejecting: template-haskell-2.3.0.1, 2.3.0.0, 2.2.0.0 (conflict:
base==4.8.1.0/installed-4f7..., template-haskell => base<4.3)
Dependency tree exhaustively searched.