Resolving dependencies... cabal: Could not resolve dependencies: trying: Buster-0.1.1 (user goal) trying: deepseq-1.4.2.0/installed-1.4... (dependency of time-1.6.0.1/installed-1.6...) next goal: http-types (dependency of Buster-0.1.1) rejecting: http-types-0.9.1, http-types-0.9, http-types-0.8.6, http-types-0.8.5, http-types-0.8.4, http-types-0.8.3, http-types-0.8.2, http-types-0.8.1, http-types-0.8.0 (conflict: Buster => http-types==0.7.*) rejecting: http-types-0.7.3.0.1, http-types-0.7.3, http-types-0.7.2, http-types-0.7.1, http-types-0.7.0 (conflict: deepseq => array==0.5.1.1/installed-0.5..., http-types => array>=0.2 && <0.5) rejecting: http-types-0.6.11, http-types-0.6.10, http-types-0.6.9, http-types-0.6.8, http-types-0.6.7, http-types-0.6.6, http-types-0.6.5.1, http-types-0.6.5, http-types-0.6.4, http-types-0.6.3, http-types-0.6.2, http-types-0.6.1, http-types-0.6.0.1, http-types-0.6.0, http-types-0.5.3, http-types-0.5.2, http-types-0.5.1, http-types-0.5, http-types-0.4.1, http-types-0.4.0, http-types-0.3.1, http-types-0.3.0, http-types-0.2.0, http-types-0.1.1, http-types-0.1 (conflict: Buster => http-types==0.7.*) Dependency tree exhaustively searched.