Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: gi-gstapp (user goal)
[__0] rejecting: gi-gstapp-1.0.28 (conflict: pkg-config package
gstreamer-app-1.0-any, not found in the pkg-config database)
[__0] fail (backjumping, conflict set: gi-gstapp)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-gstapp