Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: confsolve (user goal)
rejecting: confsolve-0.5.4, 0.5.3 (global constraint requires ==0.5.2)
trying: confsolve-0.5.2
trying: base-4.7.0.1/installed-e4b... (dependency of confsolve-0.5.2)
next goal: process (dependency of confsolve-0.5.2)
rejecting: process-1.2.0.0/installed-163..., 1.2.3.0, 1.2.2.0, 1.2.1.0,
1.2.0.0 (conflict: confsolve => process>=1.1.0.2 && <1.2)
trying: process-1.1.0.2
rejecting: process-1.1.0.2:+base4 (conflict: base==4.7.0.1/installed-e4b...,
process-1.1.0.2:base4 => base>=4 && <4.7)
rejecting: process-1.1.0.2:-base4 (conflict: base==4.7.0.1/installed-e4b...,
process-1.1.0.2:base4 => base>=3 && <4)
Dependency tree exhaustively searched.