Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: goa (user goal)
rejecting: goa-3.3, goa-3.2 (constraint from user target requires ==3.1)
trying: goa-3.1
trying: base-4.9.0.0/installed-4.9... (dependency of goa-3.1)
next goal: process (dependency of goa-3.1)
rejecting: process-1.4.2.0/installed-1.4..., process-1.4.3.0, process-1.4.2.0,
process-1.4.1.0, process-1.4.0.0, process-1.3.0.0, process-1.2.3.0,
process-1.2.2.0, process-1.2.1.0, process-1.2.0.0, process-1.1.0.2,
process-1.1.0.1, process-1.1.0.0 (conflict: goa => process>=1.0 && <1.1)
rejecting: process-1.0.1.5, process-1.0.1.4 (conflict:
base==4.9.0.0/installed-4.9..., process => base>=4 && <4.5 || >=3 && <4)
trying: process-1.0.1.3
next goal: directory (dependency of goa-3.1)
rejecting: directory-1.2.6.2/installed-1.2..., directory-1.3.0.0,
directory-1.2.7.1, directory-1.2.7.0, directory-1.2.6.3, directory-1.2.6.2,
directory-1.2.5.1, directory-1.2.5.0, directory-1.2.4.0, directory-1.2.3.1,
directory-1.2.3.0, directory-1.2.2.1, directory-1.2.2.0, directory-1.2.1.0,
directory-1.2.0.1, directory-1.2.0.0 (conflict: goa => directory>=1.0 && <1.2)
rejecting: directory-1.1.0.2, directory-1.1.0.1, directory-1.1.0.0 (conflict:
process => directory>=1.0 && <1.1)
rejecting: directory-1.0.1.2 (conflict: base==4.9.0.0/installed-4.9...,
directory => base>=4.2 && <4.4)
rejecting: directory-1.0.1.1, directory-1.0.1.0 (conflict:
base==4.9.0.0/installed-4.9..., directory => base>=4.1 && <4.3)
rejecting: directory-1.0.0.3, directory-1.0.0.0 (conflict:
base==4.9.0.0/installed-4.9..., directory => base<4.3)
rejecting: directory-1.2.6.1 (conflict: goa => directory>=1.0 && <1.2)
Dependency tree exhaustively searched.