Resolving dependencies... cabal: Could not resolve dependencies: next goal: mighttpd2 (user goal) rejecting: mighttpd2-3.2.9, 3.2.8, 3.2.7, 3.2.6, 3.2.5, 3.2.4, 3.2.3, 3.2.2, 3.2.1, 3.2.0, 3.1.3, 3.1.2, 3.1.1, 3.1.0, 3.0.6, 3.0.5, 3.0.4, 3.0.3, 3.0.1, 3.0.0, 2.8.9, 2.8.8, 2.8.7, 2.8.6, 2.8.5, 2.8.4, 2.8.3, 2.8.2, 2.8.1, 2.8.0, 2.7.2, 2.7.1, 2.7.0, 2.6.0, 2.5.11, 2.5.10, 2.5.9, 2.5.8, 2.5.7, 2.5.6, 2.5.5, 2.5.4, 2.5.3, 2.5.2, 2.5.1, 2.5.0, 2.4.2, 2.4.1 (global constraint requires ==2.4.0) trying: mighttpd2-2.4.0 trying: base-4.8.1.0/installed-4f7... (dependency of mighttpd2-2.4.0) trying: http-enumerator-0.7.3.3 (dependency of mighttpd2-2.4.0) next goal: certificate (dependency of http-enumerator-0.7.3.3) rejecting: certificate-1.3.9, 1.3.8, 1.3.7, 1.3.6, 1.3.5, 1.3.3, 1.3.2, 1.3.1, 1.3.0, 1.2.9, 1.2.8, 1.2.7, 1.2.6, 1.2.5, 1.2.4, 1.2.3, 1.2.2, 1.2.1, 1.2.0 (conflict: http-enumerator => certificate>=1.1 && <1.2) rejecting: certificate-1.1.1, 1.1.0 (conflict: base==4.8.1.0/installed-4f7..., certificate => base>=3 && <4.8) rejecting: certificate-1.0.1, 1.0.0, 0.9.5, 0.9.4, 0.9.3, 0.9.2, 0.9.1, 0.9.0.1, 0.9.0, 0.8.1, 0.8.0, 0.7.0, 0.6.0, 0.4.0, 0.3.2, 0.3, 0.2.1, 0.2, 0.1 (conflict: http-enumerator => certificate>=1.1 && <1.2) Dependency tree exhaustively searched.