Resolving dependencies... cabal: Could not resolve dependencies: next goal: sunroof-examples (user goal) rejecting: sunroof-examples-0.2.2 (constraint from user target requires ==0.2) trying: sunroof-examples-0.2 trying: data-default-0.7.1.1 (dependency of sunroof-examples-0.2) next goal: sunroof-server (dependency of sunroof-examples-0.2) rejecting: sunroof-server-0.2.1 (conflict: sunroof-examples => sunroof-server==0.2) rejecting: sunroof-server-0.2 (conflict: data-default==0.7.1.1, sunroof-server => data-default==0.5.*) Dependency tree exhaustively searched.