Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: retrie-1.2.0.0 (user goal)
[__1] next goal: ghc-exactprint (dependency of retrie)
[__1] rejecting: ghc-exactprint-1.3.0 (library is not buildable in the current
environment, but it is required by retrie)
[__1] rejecting: ghc-exactprint-1.2.0 (conflict: retrie =>
ghc-exactprint>=1.3.0 && <1.4)
[__1] skipping: ghc-exactprint-1.1.0, ghc-exactprint-0.6.4,
ghc-exactprint-0.6.3.4, ghc-exactprint-0.6.3.3, ghc-exactprint-0.6.3.2,
ghc-exactprint-0.6.3.1, ghc-exactprint-0.6.3, ghc-exactprint-0.6.2,
ghc-exactprint-0.6.1, ghc-exactprint-0.6, ghc-exactprint-0.5.8.2,
ghc-exactprint-0.5.8.1, ghc-exactprint-0.5.8.0, ghc-exactprint-0.5.7.1,
ghc-exactprint-0.5.7.0, ghc-exactprint-0.5.6.1, ghc-exactprint-0.5.6.0,
ghc-exactprint-0.5.5.0, ghc-exactprint-0.5.4.0, ghc-exactprint-0.5.3.1,
ghc-exactprint-0.5.3.0, ghc-exactprint-0.5.2.1, ghc-exactprint-0.5.2,
ghc-exactprint-0.5.1.1, ghc-exactprint-0.5.1.0, ghc-exactprint-0.5.0.1,
ghc-exactprint-0.5.0.0, ghc-exactprint-0.4.2.0, ghc-exactprint-0.4.1.0,
ghc-exactprint-0.4.0.0, ghc-exactprint-0.3.1.1, ghc-exactprint-0.3.1,
ghc-exactprint-0.3, ghc-exactprint-0.2, ghc-exactprint-0.1.1.0,
ghc-exactprint-0.1.0.1, ghc-exactprint-0.1.0.0 (has the same characteristics
that caused the previous version to fail: excluded by constraint '>=1.3.0 &&
<1.4' from 'retrie')
[__1] fail (backjumping, conflict set: ghc-exactprint, retrie)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: retrie, ghc-exactprint