Resolving dependencies... cabal: Could not resolve dependencies: next goal: modulespection (user goal) rejecting: modulespection-0.1.2.2, 0.1.2.1 (global constraint requires ==0.1.2.0) trying: modulespection-0.1.2.0 next goal: temporary (dependency of modulespection-0.1.2.0) rejecting: temporary-1.2.0.3 (conflict: exceptions==0.5, temporary => exceptions>=0.6) trying: temporary-1.2.0.2 next goal: directory (dependency of temporary-1.2.0.2) rejecting: directory-1.2.2.0/installed-258... (conflict: filepath==1.3.0.1, directory => filepath==1.4.0.0/installed-8fe...) trying: directory-1.2.4.0 next goal: ghc (dependency of modulespection-0.1.2.0) rejecting: ghc-7.10.2/installed-a64... (conflict: directory==1.2.4.0, ghc => directory==1.2.2.0/installed-258...) Dependency tree exhaustively searched.