Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] trying: gi-gdk-4.0.10 (user goal)
[__1] next goal: gi-gdk4 (dependency of gi-gdk)
[__1] rejecting: gi-gdk4-4.0.10 (conflict: pkg-config package gtk4-any, not
found in the pkg-config database)
[__1] fail (backjumping, conflict set: gi-gdk, gi-gdk4)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: gi-gdk, gi-gdk4