Resolving dependencies... cabal: Could not resolve dependencies: [__0] trying: hslua-examples-2.0.0 (user goal) [__1] next goal: hslua (dependency of hslua-examples) [__1] rejecting: hslua-1.3.0.2 (conflict: hslua-examples => hslua>=2.0 && <2.1) [__1] skipping: hslua-1.3.0.1, hslua-1.3.0, hslua-1.2.0, hslua-1.1.2, hslua-1.1.0, hslua-1.0.3.2, hslua-1.0.3.1, hslua-1.0.3, hslua-1.0.2, hslua-1.0.1, hslua-1.0.0, hslua-0.9.5.2, hslua-0.9.5.1, hslua-0.9.5, hslua-0.9.4, hslua-0.9.3, hslua-0.9.2, hslua-0.9.1, hslua-0.9.0, hslua-0.8.0, hslua-0.7.1, hslua-0.7.0, hslua-0.6.0, hslua-0.5.0, hslua-0.4.1, hslua-0.4.0, hslua-0.3.13, hslua-0.3.12, hslua-0.3.11, hslua-0.3.10, hslua-0.3.9, hslua-0.3.8, hslua-0.3.7, hslua-0.3.6.1, hslua-0.3.6, hslua-0.3.5, hslua-0.3.4, hslua-0.3.3, hslua-0.3.2, hslua-0.3, hslua-0.2, hslua-0.1, hslua-1.1.1 (has the same characteristics that caused the previous version to fail: excluded by constraint '>=2.0 && <2.1' from 'hslua-examples') [__1] fail (backjumping, conflict set: hslua, hslua-examples) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: hslua-examples, hslua