Resolving dependencies... cabal: Could not resolve dependencies: next goal: antisplice (user goal) rejecting: antisplice-0.17.1.1, antisplice-0.17.1.0, antisplice-0.17.0.3, antisplice-0.17.0.2, antisplice-0.17.0.0, antisplice-0.16.0.1, antisplice-0.15.0.1, antisplice-0.14.0.3, antisplice-0.14.0.0, antisplice-0.13.2.2, antisplice-0.13.2.0, antisplice-0.13.1.0, antisplice-0.13.0.1, antisplice-0.12.3.0, antisplice-0.12.1.0, antisplice-0.12.0.0, antisplice-0.11.0.4 (constraint from user target requires ==0.11.0.3) trying: antisplice-0.11.0.3 next goal: base (dependency of antisplice-0.11.0.3) rejecting: base-4.9.0.0/installed-4.9... (conflict: antisplice => base>=4.6 && <4.7) rejecting: base-4.9.0.0, base-4.8.2.0, base-4.8.1.0, base-4.8.0.0, base-4.7.0.2, base-4.7.0.1, base-4.7.0.0, base-4.6.0.1, base-4.6.0.0, base-4.5.1.0, base-4.5.0.0, base-4.4.1.0, base-4.4.0.0, base-4.3.1.0, base-4.3.0.0, base-4.2.0.2, base-4.2.0.1, base-4.2.0.0, base-4.1.0.0, base-4.0.0.0, base-3.0.3.2, base-3.0.3.1 (constraint from non-upgradeable package requires installed instance) Dependency tree exhaustively searched.