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 (global constraint requires ==2.0.0.2) trying: repa-examples-2.0.0.2 trying: base-4.7.0.1/installed-e4b... (dependency of repa-examples-2.0.0.2) next goal: template-haskell (dependency of repa-examples-2.0.0.2) rejecting: template-haskell-2.9.0.0/installed-3af..., 2.10.0.0, 2.9.0.0, 2.8.0.0, 2.7.0.0, 2.6.0.0 (conflict: repa-examples => template-haskell>=2.5 && <2.6) rejecting: template-haskell-2.5.0.0 (conflict: base==4.7.0.1/installed-e4b..., template-haskell => base==4.3.*) rejecting: template-haskell-2.4.0.1, 2.4.0.0, 2.3.0.1, 2.3.0.0, 2.2.0.0 (conflict: repa-examples => template-haskell>=2.5 && <2.6) Dependency tree exhaustively searched.