Resolving dependencies... cabal: Could not resolve dependencies: next goal: aws-sdk (user goal) rejecting: aws-sdk-0.12.4, aws-sdk-0.12.3, aws-sdk-0.12.2, aws-sdk-0.12.1, aws-sdk-0.12.0, aws-sdk-0.11.3.3, aws-sdk-0.11.3.2, aws-sdk-0.11.3.1, aws-sdk-0.11.3, aws-sdk-0.11.2, aws-sdk-0.11.1, aws-sdk-0.11.0, aws-sdk-0.10.0 (constraint from user target requires ==0.9.4.1) trying: aws-sdk-0.9.4.1 trying: base-4.9.0.0/installed-4.9... (dependency of aws-sdk-0.9.4.1) next goal: template-haskell (dependency of aws-sdk-0.9.4.1) rejecting: template-haskell-2.11.0.0/installed-2.1..., template-haskell-2.11.0.0, template-haskell-2.10.0.0, template-haskell-2.9.0.0, template-haskell-2.8.0.0 (conflict: aws-sdk => template-haskell==2.7.0.0) rejecting: template-haskell-2.7.0.0 (conflict: base==4.9.0.0/installed-4.9..., template-haskell => base==4.5.*) rejecting: template-haskell-2.6.0.0, template-haskell-2.5.0.0, template-haskell-2.4.0.1, template-haskell-2.4.0.0, template-haskell-2.3.0.1, template-haskell-2.3.0.0, template-haskell-2.2.0.0 (conflict: aws-sdk => template-haskell==2.7.0.0) Dependency tree exhaustively searched.