Resolving dependencies...
Error: cabal: Could not resolve dependencies:
[__0] next goal: moffy-samples-gtk4-run (user goal)
[__0] rejecting: moffy-samples-gtk4-run-0.2.1.3 (conflict: pkg-config package
gtk4-any, not found in the pkg-config database)
[__0] rejecting: moffy-samples-gtk4-run-0.2.1.2,
moffy-samples-gtk4-run-0.2.1.1, moffy-samples-gtk4-run-0.2.1.0,
moffy-samples-gtk4-run-0.2.0.0, moffy-samples-gtk4-run-0.1.0.0 (constraint
from user target requires ==0.2.1.3)
[__0] fail (backjumping, conflict set: moffy-samples-gtk4-run)
After searching the rest of the dependency tree exhaustively, these were the
goals I've had most trouble fulfilling: moffy-samples-gtk4-run