Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: json-python (user goal)
rejecting: json-python-0.4.0.1 (constraint from user target requires
==0.4.0.0)
rejecting: json-python-0.4.0.0 (conflict: requires pkg-config package
python-any, not found in the pkg-config database)
rejecting: json-python-0.3.0.1 (constraint from user target requires
==0.4.0.0)
Dependency tree exhaustively searched.