Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: gi-gsttag (user goal)
rejecting: gi-gsttag-1.0.13 (conflict: requires pkg-config package
gstreamer-tag-1.0-any, not found in the pkg-config database)
rejecting: gi-gsttag-1.0.12 (constraint from user target requires ==1.0.13)
Dependency tree exhaustively searched.