Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: ridley-extras-0.1.1.0 (user goal)
[__1] trying: ridley-0.3.2.0 (dependency of ridley-extras)
[__2] trying: template-haskell-2.16.0.0/installed-2.16.0.0 (dependency of
ridley)
[__3] next goal: katip (dependency of ridley)
[__3] rejecting: katip-0.8.5.0 (conflict: ridley => katip<0.8.0.0)
[__3] skipping: katip-0.8.4.0, katip-0.8.3.0, katip-0.8.2.0, katip-0.8.1.0,
katip-0.8.0.0 (has the same characteristics that caused the previous version
to fail: excluded by constraint '<0.8.0.0' from 'ridley')
[__3] rejecting: katip-0.7.0.0 (conflict:
template-haskell==2.16.0.0/installed-2.16.0.0, katip => template-haskell>=2.8
&& <2.15)
[__3] skipping: katip-0.6.3.0, katip-0.6.2.1, katip-0.6.2.0, katip-0.6.1.0,
katip-0.6.0.0, katip-0.5.5.1, katip-0.5.5.0, katip-0.5.4.0, katip-0.5.3.0,
katip-0.5.2.0, katip-0.5.1.0, katip-0.5.0.4, katip-0.5.0.3, katip-0.5.0.2,
katip-0.5.0.1, katip-0.5.0.0, katip-0.4.1.0, katip-0.4.0.0, katip-0.3.1.5,
katip-0.3.1.4, katip-0.3.1.3, katip-0.3.1.2, katip-0.3.1.1, katip-0.3.1.0,
katip-0.3.0.0, katip-0.2.0.0, katip-0.1.1.0, katip-0.1.0.0 (has the same
characteristics that caused the previous version to fail: excludes
'template-haskell' version 2.16.0.0)
[__3] fail (backjumping, conflict set: katip, ridley, template-haskell)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: katip, ridley, template-haskell,
ridley-extras
Try running with --minimize-conflict-set to improve the error message.