Resolving dependencies... cabal: Could not resolve dependencies: trying: servant-github-webhook-0.3.0.0 (user goal) next goal: github (dependency of servant-github-webhook-0.3.0.0) rejecting: github-0.14.1, github-0.14.0, github-0.13.2, github-0.13.1, github-0.13, github-0.12, github-0.11.1, github-0.11.0, github-0.10.0, github-0.9, github-0.8, github-0.7.4, github-0.7.3, github-0.7.2, github-0.7.1, github-0.7.0, github-0.6.0, github-0.5.0, github-0.4.1, github-0.4.0, github-0.3.0, github-0.2.1, github-0.2.0, github-0.1.2, github-0.1.1, github-0.1 (conflict: servant-github-webhook => github>=0.15 && <0.16) Dependency tree exhaustively searched.