Resolving dependencies... cabal: Could not resolve dependencies: next goal: language-puppet (user goal) rejecting: language-puppet-1.1.4.1, 1.1.4, 1.1.3.1, 1.1.3, 1.1.1.2, 1.1.1.1, 1.1.1, 1.1.0, 1.0.1, 1.0.0, 0.14.0, 0.13.0, 0.12.3, 0.12.2, 0.12.1, 0.12.0, 0.11.1.1, 0.11.1 (global constraint requires ==0.11.0) trying: language-puppet-0.11.0 next goal: base (dependency of language-puppet-0.11.0) rejecting: base-4.8.1.0/installed-4f7... (conflict: language-puppet => base==4.6.*) rejecting: base-4.8.1.0, 4.8.0.0, 4.7.0.2, 4.7.0.1, 4.7.0.0, 4.6.0.1, 4.6.0.0, 4.5.1.0, 4.5.0.0, 4.4.1.0, 4.4.0.0, 4.3.1.0, 4.3.0.0, 4.2.0.2, 4.2.0.1, 4.2.0.0, 4.1.0.0, 4.0.0.0, 3.0.3.2, 3.0.3.1 (global constraint requires installed instance) Dependency tree exhaustively searched.