Resolving dependencies...
cabal: Could not resolve dependencies:
[__0] trying: xrefcheck-0.1.1 (user goal)
[__1] unknown package: loot-prelude (dependency of xrefcheck)
[__1] fail (backjumping, conflict set: loot-prelude, xrefcheck)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: xrefcheck, loot-prelude