Resolving dependencies... cabal: Could not resolve dependencies: next goal: intel-aes (user goal) rejecting: intel-aes-0.2.1.1, intel-aes-0.2.1.0 (constraint from user target requires ==0.2.0.0) trying: intel-aes-0.2.0.0 trying: base-4.9.0.0/installed-4.9... (dependency of intel-aes-0.2.0.0) trying: binary-0.8.3.0/installed-0.8... (dependency of largeword-1.2.5) next goal: haskell98 (dependency of intel-aes-0.2.0.0) rejecting: haskell98-2.0.0.3 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base>=4.7 && <4.8) rejecting: haskell98-2.0.0.2 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base==4.6.*) rejecting: haskell98-2.0.0.1 (conflict: binary => array==0.5.1.1/installed-0.5..., haskell98 => array>=0.3 && <0.5) rejecting: haskell98-2.0.0.0 (conflict: binary => array==0.5.1.1/installed-0.5..., haskell98 => array>=0.3 && <0.4) rejecting: haskell98-1.1.0.1, haskell98-1.1.0.0, haskell98-1.0.1.1 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base>=3 && <4.6) rejecting: haskell98-1.0.1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base<4.6) rejecting: haskell98-1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base<4.3) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).