Resolving dependencies... cabal: Could not resolve dependencies: next goal: tamarin-prover (user goal) rejecting: tamarin-prover-0.8.6.1, 0.8.6.0, 0.8.5.1, 0.8.5.0, 0.8.4.0, 0.8.2.1, 0.8.2.0, 0.8.1.0, 0.8.0.0, 0.6.1.0, 0.6.0.0, 0.4.1.0, 0.4.0.0 (global constraint requires ==0.1.1.0) trying: tamarin-prover-0.1.1.0 trying: base-4.7.0.1/installed-e4b... (dependency of tamarin-prover-0.1.1.0) next goal: monad-control (dependency of tamarin-prover-0.1.1.0) rejecting: monad-control-1.0.0.4, 1.0.0.3, 1.0.0.2, 1.0.0.1, 1.0.0.0, 0.3.3.1, 0.3.3.0, 0.3.2.3, 0.3.2.2, 0.3.2.1, 0.3.2, 0.3.1.4, 0.3.1.3, 0.3.1.2, 0.3.1.1, 0.3.1, 0.3.0.1, 0.3 (conflict: tamarin-prover => monad-control==0.2.*) rejecting: monad-control-0.2.0.3, 0.2.0.2 (conflict: base==4.7.0.1/installed-e4b..., monad-control => base>=3 && <4.5) rejecting: monad-control-0.2.0.1, 0.2 (conflict: base==4.7.0.1/installed-e4b..., monad-control => base>=3 && <4.4) rejecting: monad-control-0.1 (conflict: tamarin-prover => monad-control==0.2.*) Dependency tree exhaustively searched.