Resolving dependencies... cabal: Could not resolve dependencies: next goal: repa-examples (user goal) rejecting: repa-examples-3.4.0.1, 3.3.1.1, 3.2.5.1, 3.2.3.2, 3.2.3.1, 3.2.2.201204.1, 3.2.2.3, 3.2.2.1, 3.2.1.1, 3.1.3.1, 3.1.0.1, 3.0.0.2, 3.0.0.1, 2.2.0.1, 2.1.0.2, 2.1.0.1, 2.0.2.1, 2.0.0.3, 2.0.0.2, 2.0.0.1, 1.1.1.0, 1.1.0.0 (global constraint requires ==1.0.0.0) trying: repa-examples-1.0.0.0 next goal: dph-base (dependency of repa-examples-1.0.0.0) rejecting: dph-base-0.7.0.1, 0.6.1.1, 0.6.0.1, 0.5.1.1 (conflict: repa-examples => dph-base>=0.4 && <0.5) Dependency tree exhaustively searched.