Resolving dependencies... Error: cabal: Could not resolve dependencies: [__0] trying: liquid-platform-0.9.2.8 (user goal) [__1] next goal: liquid-vector (dependency of liquid-platform) [__1] rejecting: liquid-vector-0.12.3.1.2 (conflict: liquid-platform => liquid-vector>=0.13.1.0) [__1] skipping: liquid-vector-0.12.3.1, liquid-vector-0.12.1.2 (has the same characteristics that caused the previous version to fail: excluded by constraint '>=0.13.1.0' from 'liquid-platform') [__1] fail (backjumping, conflict set: liquid-platform, liquid-vector) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: liquid-platform, liquid-vector