Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: marxup (user goal)
rejecting: marxup-3.0.0.1, 3.0.0, 1.0.2, 1.0.1 (global constraint requires
==1.0.0.1)
trying: marxup-1.0.0.1
trying: base-4.8.1.0/installed-4f7... (dependency of marxup-1.0.0.1)
next goal: parsec (dependency of marxup-1.0.0.1)
rejecting: parsec-3.1.9, 3.1.8, 3.1.7, 3.1.6, 3.1.5, 3.1.4, 3.1.3, 3.1.2,
3.1.1, 3.1.0, 3.0.1, 3.0.0 (conflict: marxup => parsec==2.1.*)
rejecting: parsec-2.1.0.1, 2.1.0.0 (conflict: base==4.8.1.0/installed-4f7...,
parsec => base<4.8)
rejecting: parsec-2.0 (conflict: marxup => parsec==2.1.*)
Dependency tree exhaustively searched.