Resolving dependencies... cabal: Could not resolve dependencies: next goal: clash-ghc (user goal) rejecting: clash-ghc-0.5.6, 0.5.5, 0.5.4, 0.5.3 (global constraint requires ==0.5.2) trying: clash-ghc-0.5.2 trying: base-4.7.0.1/installed-e4b... (dependency of clash-ghc-0.5.2) next goal: ghc-typelits-natnormalise (dependency of clash-ghc-0.5.2) rejecting: ghc-typelits-natnormalise-0.2.1, 0.2, 0.1.2 (conflict: base==4.7.0.1/installed-e4b..., ghc-typelits-natnormalise => base>=4.8 && <5) rejecting: ghc-typelits-natnormalise-0.1.1, 0.1 (conflict: clash-ghc => ghc-typelits-natnormalise>=0.1.2) Dependency tree exhaustively searched.