Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: gi-gst (user goal)
rejecting: gi-gst-1.0.6, gi-gst-1.0.5, gi-gst-1.0.4 (constraint from user
target requires ==1.0.3)
rejecting: gi-gst-1.0.3 (conflict: requires pkg-config package
gstreamer-1.0-any, not found in the pkg-config database)
rejecting: gi-gst-1.0.2, gi-gst-1.0.1, gi-gst-0.1.6.13 (constraint from user
target requires ==1.0.3)
Dependency tree exhaustively searched.