Resolving dependencies... cabal: Could not resolve dependencies: next goal: data-accessor-template (user goal) rejecting: data-accessor-template-0.2.1.12, 0.2.1.11, 0.2.1.10, 0.2.1.9, 0.2.1.8, 0.2.1.7, 0.2.1.6, 0.2.1.5, 0.2.1.4 (global constraint requires ==0.2.1.3) trying: data-accessor-template-0.2.1.3 trying: template-haskell-2.10.0.0/installed-90e... (dependency of data-accessor-template-0.2.1.3) rejecting: data-accessor-template-0.2.1.3:-template_2_4 (conflict: template-haskell==2.10.0.0/installed-90e..., data-accessor-template-0.2.1.3:template_2_4 => template-haskell>=2.2 && <2.4) rejecting: data-accessor-template-0.2.1.3:+template_2_4 (conflict: template-haskell==2.10.0.0/installed-90e..., data-accessor-template-0.2.1.3:template_2_4 => template-haskell>=2.4 && <2.5) Dependency tree exhaustively searched.