Resolving dependencies... cabal: Could not resolve dependencies: next goal: Haschoo (user goal) rejecting: Haschoo-0.1.2 (global constraint requires ==0.1.1) trying: Haschoo-0.1.1 next goal: list-tries (dependency of Haschoo-0.1.1) rejecting: list-tries-0.6.1, 0.6.0, 0.5.2, 0.5.1, 0.5 (conflict: Haschoo => list-tries>=0.1 && <0.5) rejecting: list-tries-0.4.3 (conflict: base==4.7.0.1/installed-e4b..., list-tries => base>=3 && <4.7) rejecting: list-tries-0.4.2 (conflict: base==4.7.0.1/installed-e4b..., list-tries => base>=3 && <4.6) rejecting: list-tries-0.4.1 (conflict: base==4.7.0.1/installed-e4b..., list-tries => base>=3 && <4.4) rejecting: list-tries-0.4, 0.3 (conflict: base==4.7.0.1/installed-e4b..., list-tries => base>=3 && <4.3) trying: list-tries-0.2 next goal: binary (dependency of list-tries-0.2) rejecting: binary-0.7.1.0/installed-0f4... (conflict: binary => array==0.5.0.0/installed-98a..., Haschoo => array>=0.2 && <0.4) trying: binary-0.7.4.0 trying: bytestring-0.10.4.0/installed-9f4... (dependency of binary-0.7.4.0) next goal: deepseq (dependency of bytestring-0.10.4.0/installed-9f4...) rejecting: deepseq-1.3.0.2/installed-733... (conflict: deepseq => array==0.5.0.0/installed-98a..., Haschoo => array>=0.2 && <0.4) rejecting: deepseq-1.4.1.1, 1.4.1.0, 1.4.0.0, 1.3.0.2, 1.3.0.1, 1.3.0.0, 1.2.0.1, 1.2.0.0, 1.1.0.2, 1.1.0.1, 1.1.0.0, 1.0.0.0 (conflict: bytestring => deepseq==1.3.0.2/installed-733...) Dependency tree exhaustively searched.