Resolving dependencies...
cabal: Could not resolve dependencies:
trying: pandoc-japanese-filters-0.1.0.1 (user goal)
trying: base-4.9.0.0/installed-4.9... (dependency of
pandoc-japanese-filters-0.1.0.1)
next goal: effin (dependency of pandoc-japanese-filters-0.1.0.1)
rejecting: effin-0.3.0.1 (conflict: base==4.9.0.0/installed-4.9..., effin =>
base>=4.7 && <4.9)
rejecting: effin-0.2.1.3, effin-0.2.1.2, effin-0.2.1.1, effin-0.2.1.0,
effin-0.2.0.0, effin-0.1.1.0, effin-0.1.0.1, effin-0.1.0.0 (conflict:
base==4.9.0.0/installed-4.9..., effin => base>=4.7 && <4.8)
Dependency tree exhaustively searched.