Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: egison-4.1.1 (user goal)
[__1] trying: sweet-egison-0.1.1.2 (dependency of egison)
[__2] next goal: template-haskell (dependency of sweet-egison)
[__2] rejecting: template-haskell-2.14.0.0/installed-2.14.0.0 (conflict:
sweet-egison => template-haskell>=2.16.0.0)
[__2] rejecting: template-haskell-2.16.0.0, template-haskell-2.15.0.0,
template-haskell-2.14.0.0, template-haskell-2.13.0.0,
template-haskell-2.12.0.0, template-haskell-2.11.1.0,
template-haskell-2.11.0.0, template-haskell-2.10.0.0,
template-haskell-2.9.0.0, template-haskell-2.8.0.0, template-haskell-2.7.0.0,
template-haskell-2.6.0.0, template-haskell-2.5.0.0, template-haskell-2.4.0.1,
template-haskell-2.4.0.0, template-haskell-2.3.0.1, template-haskell-2.3.0.0,
template-haskell-2.2.0.0 (constraint from non-upgradeable package requires
installed instance)
[__2] fail (backjumping, conflict set: sweet-egison, template-haskell)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: egison, template-haskell, sweet-egison