Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of yuuko-2010.1.23)
next goal: hxt (dependency of yuuko-2010.1.23)
rejecting: hxt-9.3.1.16, hxt-9.3.1.15, hxt-9.3.1.14, hxt-9.3.1.13,
hxt-9.3.1.12, hxt-9.3.1.11, hxt-9.3.1.10, hxt-9.3.1.9, hxt-9.3.1.7,
hxt-9.3.1.6, hxt-9.3.1.4, hxt-9.3.1.3, hxt-9.3.1.2, hxt-9.3.1.1, hxt-9.3.1.0,
hxt-9.3.0.1, hxt-9.3.1.5, hxt-9.2.2, hxt-9.2.1, hxt-9.2.0, hxt-9.1.6,
hxt-9.1.5, hxt-9.1.4, hxt-9.1.3, hxt-9.1.2, hxt-9.1.1, hxt-9.1.0, hxt-9.0.1,
hxt-9.0.0, hxt-8.5.4, hxt-8.5.2, hxt-8.5.1, hxt-8.5.0 (conflict: yuuko =>
hxt>=8.3.2.3 && <8.5)
trying: hxt-8.4.1
next goal: haskell98 (dependency of hxt-8.4.1)
rejecting: haskell98-2.0.0.3, haskell98-2.0.0.2, haskell98-2.0.0.1,
haskell98-2.0.0.0 (conflict: hxt => haskell98>=1 && <2)
rejecting: haskell98-1.1.0.1, haskell98-1.1.0.0, haskell98-1.0.1.1 (conflict:
base==4.9.0.0/installed-4.9..., haskell98 => base>=3 && <4.6)
rejecting: haskell98-1.0.1.0 (conflict: base==4.9.0.0/installed-4.9...,
haskell98 => base<4.6)
rejecting: haskell98-1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98
=> base<4.3)
Dependency tree exhaustively searched.