Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: afv (user goal)
rejecting: afv-0.1.1, 0.1.0, 0.0.4 (global constraint requires ==0.0.3)
trying: afv-0.0.3
trying: base-4.7.0.1/installed-e4b... (dependency of afv-0.0.3)
trying: language-c-0.4.7 (dependency of afv-0.0.3)
trying: filepath-1.3.0.2/installed-158... (dependency of language-c-0.4.7)
next goal: process (dependency of afv-0.0.3)
rejecting: process-1.2.0.0/installed-163..., 1.2.3.0, 1.2.2.0, 1.2.1.0,
1.2.0.0, 1.1.0.2, 1.1.0.1, 1.1.0.0 (conflict: afv => process>=1.0 && <1.1)
rejecting: process-1.0.1.5, 1.0.1.4, 1.0.1.3 (conflict:
filepath==1.3.0.2/installed-158..., process => filepath>=1.1 && <1.3)
rejecting: process-1.0.1.2, 1.0.1.1 (conflict:
filepath==1.3.0.2/installed-158..., process => filepath>=1.1 && <1.2)
rejecting: process-1.0.0.0 (conflict: base==4.7.0.1/installed-e4b..., process
=> base<4.3)
Dependency tree exhaustively searched.