Resolving dependencies... cabal: Could not resolve dependencies: next goal: file-location (user goal) rejecting: file-location-0.4.9, 0.4.8, 0.4.7.1, 0.4.7, 0.4.6, 0.4.5.3, 0.4.5.2, 0.4.5.1, 0.4.5, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4.0 (global constraint requires ==0.3.0) trying: file-location-0.3.0 trying: base-4.8.1.0/installed-4f7... (dependency of file-location-0.3.0) next goal: monad-control (dependency of file-location-0.3.0) 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: file-location => monad-control>=0.2 && <0.3) rejecting: monad-control-0.2.0.3, 0.2.0.2 (conflict: base==4.8.1.0/installed-4f7..., monad-control => base>=3 && <4.5) rejecting: monad-control-0.2.0.1, 0.2 (conflict: base==4.8.1.0/installed-4f7..., monad-control => base>=3 && <4.4) rejecting: monad-control-0.1 (conflict: file-location => monad-control>=0.2 && <0.3) Dependency tree exhaustively searched.