Resolving dependencies...
cabal: Could not resolve dependencies:
trying: base-4.9.0.0/installed-4.9... (dependency of maid-2009.8.18)
trying: hack-handler-evhttp-2009.8.4 (dependency of maid-2009.8.18)
next goal: bytestring-class (dependency of hack-handler-evhttp-2009.8.4)
rejecting: bytestring-class-0.0.0.1, bytestring-class-0.0.0 (conflict:
base==4.9.0.0/installed-4.9..., bytestring-class => base<4.4)
Dependency tree exhaustively searched.