Resolving dependencies... cabal: Could not resolve dependencies: next goal: hasql (user goal) rejecting: hasql-0.19.15.2, hasql-0.19.15.1, hasql-0.19.15, hasql-0.19.14, hasql-0.19.13, hasql-0.19.12, hasql-0.19.11, hasql-0.19.10, hasql-0.19.9, hasql-0.19.8, hasql-0.19.7, hasql-0.19.6, hasql-0.19.5, hasql-0.19.4, hasql-0.19.3.3 (constraint from user target requires ==0.19.3.2) trying: hasql-0.19.3.2 trying: base-4.9.0.0/installed-4.9... (dependency of hasql-0.19.3.2) next goal: base-prelude (dependency of hasql-0.19.3.2) rejecting: base-prelude-1.0.1.1, base-prelude-1.0.1, base-prelude-1, base-prelude-0.2 (conflict: hasql => base-prelude>=0.1.19 && <0.2) rejecting: base-prelude-0.1.21, base-prelude-0.1.20, base-prelude-0.1.19 (conflict: base==4.9.0.0/installed-4.9..., base-prelude => base>=4.6 && <4.9) rejecting: base-prelude-0.1.17, base-prelude-0.1.16, base-prelude-0.1.15, base-prelude-0.1.14, base-prelude-0.1.13, base-prelude-0.1.12, base-prelude-0.1.11, base-prelude-0.1.10, base-prelude-0.1.9, base-prelude-0.1.8, base-prelude-0.1.7, base-prelude-0.1.6, base-prelude-0.1.5, base-prelude-0.1.4, base-prelude-0.1.3, base-prelude-0.1.2, base-prelude-0.1.1, base-prelude-0.1.0, base-prelude-0.1.18 (conflict: hasql => base-prelude>=0.1.19 && <0.2) Dependency tree exhaustively searched.