Resolving dependencies... cabal: Could not resolve dependencies: next goal: network-data (user goal) rejecting: network-data-0.5.3, network-data-0.5.2, network-data-0.5.1, network-data-0.5, network-data-0.4, network-data-0.3.0, network-data-0.2.1, network-data-0.2.0, network-data-0.1.0, network-data-0.0.2 (constraint from user target requires ==0.0.1) trying: network-data-0.0.1 trying: base-4.9.0.0/installed-4.9... (dependency of network-data-0.0.1) next goal: binary (dependency of network-data-0.0.1) rejecting: binary-0.8.3.0/installed-0.8..., binary-0.8.4.1, binary-0.8.4.0, binary-0.8.3.0, binary-0.8.2.1, binary-0.8.2.0, binary-0.8.1.0, binary-0.8.0.1, binary-0.8.0.0, binary-0.7.6.1, binary-0.7.6.0, binary-0.7.5.0, binary-0.7.4.0, binary-0.7.3.0, binary-0.7.2.3, binary-0.7.2.2, binary-0.7.2.1, binary-0.7.2.0, binary-0.7.1.0, binary-0.7.0.1, binary-0.7.0.0, binary-0.6.4.0, binary-0.6.3.0, binary-0.6.2.0, binary-0.6.1.0, binary-0.6.0.0, binary-0.5.1.1, binary-0.5.1.0, binary-0.5.0.2, binary-0.5.0.1 (conflict: network-data => binary>=0.4.0 && <0.5.0 || >=0.4.0 && <0.5.0) rejecting: binary-0.5, binary-0.4.5 (conflict: base==4.9.0.0/installed-4.9..., binary => base>=3.0 && <4.7 || <3.0) rejecting: binary-0.4.4, binary-0.4.3.1, binary-0.4.3 (conflict: base==4.9.0.0/installed-4.9..., binary => base>=3.0 && <4.4 || <3.0) rejecting: binary-0.4.2, binary-0.4.1 (conflict: base==4.9.0.0/installed-4.9..., binary => base>=3.0 && <4.7 || <3.0) rejecting: binary-0.4, binary-0.3, binary-0.2 (conflict: network-data => binary>=0.4.0 && <0.5.0 || >=0.4.0 && <0.5.0) Dependency tree exhaustively searched.