Resolving dependencies... cabal: Could not resolve dependencies: next goal: atomo (user goal) rejecting: atomo-0.4.0.2, 0.4.0.1, 0.4, 0.3, 0.2.2.1, 0.2.2 (global constraint requires ==0.2.1) trying: atomo-0.2.1 trying: base-4.8.1.0/installed-4f7... (dependency of atomo-0.2.1) trying: haskeline-0.7.2.1/installed-0a4... (dependency of atomo-0.2.1) next goal: monads-fd (dependency of atomo-0.2.1) rejecting: monads-fd-0.2.0.0 (conflict: haskeline => transformers==0.4.2.0/installed-21d..., monads-fd => transformers==0.2.*) rejecting: monads-fd-0.1.0.4 (conflict: base==4.8.1.0/installed-4f7..., monads-fd => base<4.6) rejecting: monads-fd-0.1.0.3 (conflict: haskeline => transformers==0.4.2.0/installed-21d..., monads-fd => transformers==0.2.*) rejecting: monads-fd-0.1.0.2, 0.1.0.1, 0.1.0.0 (conflict: base==4.8.1.0/installed-4f7..., monads-fd => base<4.6) rejecting: monads-fd-0.0.0.1 (conflict: haskeline => transformers==0.4.2.0/installed-21d..., monads-fd => transformers>=0.1.4.0 && <0.2) rejecting: monads-fd-0.0.0.0 (conflict: haskeline => transformers==0.4.2.0/installed-21d..., monads-fd => transformers<0.2) Backjump limit reached (change with --max-backjumps).