Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] next goal: gi-soup2 (user goal) [__0] rejecting: gi-soup2-2.4.30 (conflict: pkg-config package libsoup-2.4-any, not found in the pkg-config database) [__0] fail (backjumping, conflict set: gi-soup2) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: gi-soup2