Resolving dependencies... cabal: Could not resolve dependencies: trying: GeocoderOpenCage-0.1.0.1 (user goal) trying: base-4.9.0.0/installed-4.9... (dependency of GeocoderOpenCage-0.1.0.1) next goal: HTTP (dependency of GeocoderOpenCage-0.1.0.1) rejecting: HTTP-4000.3.3, HTTP-4000.3.2, HTTP-4000.3.1, HTTP-4000.3.0 (conflict: GeocoderOpenCage => HTTP>=4000.2.8 && <4000.3) rejecting: HTTP-4000.2.23, HTTP-4000.2.22, HTTP-4000.2.21, HTTP-4000.2.20, HTTP-4000.2.19 (conflict: base==4.9.0.0/installed-4.9..., HTTP => base>=4.3.0.0 && <4.9) rejecting: HTTP-4000.2.18, HTTP-4000.2.17, HTTP-4000.2.16.1, HTTP-4000.2.16 (conflict: base==4.9.0.0/installed-4.9..., HTTP => base>=3.0.3.1 && <4.8) rejecting: HTTP-4000.2.15, HTTP-4000.2.14, HTTP-4000.2.13 (conflict: base==4.9.0.0/installed-4.9..., HTTP => base>=3.0 && <4.8) rejecting: HTTP-4000.2.12, HTTP-4000.2.11, HTTP-4000.2.10, HTTP-4000.2.9 (conflict: base==4.9.0.0/installed-4.9..., HTTP => base>=2 && <4.8) rejecting: HTTP-4000.2.8 (conflict: base==4.9.0.0/installed-4.9..., HTTP => base>=2 && <4.7) rejecting: HTTP-4000.2.7, HTTP-4000.2.6, HTTP-4000.2.5, HTTP-4000.2.4, HTTP-4000.2.3, HTTP-4000.2.2, HTTP-4000.2.1, HTTP-4000.2.0, HTTP-4000.1.2, HTTP-4000.1.1, HTTP-4000.1.0, HTTP-4000.0.10, HTTP-4000.0.9, HTTP-4000.0.8, HTTP-4000.0.7, HTTP-4000.0.6, HTTP-4000.0.5, HTTP-4000.0.4, HTTP-4000.0.3, HTTP-4000.0.2, HTTP-4000.0.1, HTTP-4000.0.0, HTTP-3001.1.5, HTTP-3001.1.4, HTTP-3001.1.3, HTTP-3001.0.4, HTTP-3001.0.3, HTTP-3001.0.2, HTTP-3001.0.1, HTTP-3001.0.0, HTTP-3000.0.0 (conflict: GeocoderOpenCage => HTTP>=4000.2.8 && <4000.3) Dependency tree exhaustively searched.