Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: gi-gstpbutils (user goal)
[__0] rejecting: gi-gstpbutils-1.0.27 (conflict: pkg-config package
gstreamer-pbutils-1.0-any, not found in the pkg-config database)
[__0] rejecting: gi-gstpbutils-1.0.25, gi-gstpbutils-1.0.24,
gi-gstpbutils-1.0.23, gi-gstpbutils-1.0.22, gi-gstpbutils-1.0.21,
gi-gstpbutils-1.0.20, gi-gstpbutils-1.0.19, gi-gstpbutils-1.0.18,
gi-gstpbutils-1.0.17, gi-gstpbutils-1.0.15, gi-gstpbutils-1.0.14,
gi-gstpbutils-1.0.13, gi-gstpbutils-1.0.12 (constraint from user target
requires ==1.0.27)
[__0] fail (backjumping, conflict set: gi-gstpbutils)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-gstpbutils