Resolving dependencies... cabal: Could not resolve dependencies: next goal: yesod-auth-oauth (user goal) rejecting: yesod-auth-oauth-1.4.0.2, 1.4.0.1, 1.4.0, 1.3.0, 1.2.0, 1.1.0.2, 1.1.0.0, 1.0.0.1, 1.0.0, 0.8.1, 0.8.0, 0.4.1 (global constraint requires ==0.4) trying: yesod-auth-oauth-0.4 next goal: http-enumerator (dependency of yesod-auth-oauth-0.4) rejecting: http-enumerator-0.7.3.3, 0.7.3.2, 0.7.3.1, 0.7.3, 0.7.2.5, 0.7.2.4, 0.7.2.3, 0.7.2.2, 0.7.2.1, 0.7.2, 0.7.1.8, 0.7.1.7, 0.7.1.6, 0.7.1.5, 0.7.1.4, 0.7.1.3, 0.7.1.2, 0.7.1.1, 0.7.1, 0.7.0, 0.6.7, 0.6.6, 0.6.5.6, 0.6.5.5, 0.6.5.4, 0.6.5.3, 0.6.5.2, 0.6.5.1, 0.6.5, 0.6.4.3, 0.6.4.2, 0.6.4.1, 0.6.4, 0.6.3, 0.6.2.1, 0.6.2, 0.6.0.2, 0.6.0.1, 0.6.0, 0.5.1, 0.5.0, 0.4.1, 0.4.0.1, 0.4.0 (conflict: yesod-auth-oauth => http-enumerator>=0.3 && <0.4) trying: http-enumerator-0.3.1 trying: network-2.6.2.0 (dependency of http-enumerator-0.3.1) next goal: wai (dependency of http-enumerator-0.3.1) rejecting: wai-3.0.2.3, 3.0.2.2, 3.0.2.1, 3.0.2, 3.0.1.1, 3.0.1, 3.0.0.2, 3.0.0.1, 3.0.0, 2.1.0.3, 2.1.0.2, 2.1.0.1, 2.1.0, 2.0.0, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4.0, 1.3.0.3, 1.3.0.2, 1.3.0.1, 1.3.0, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2.0, 1.1.0.1, 1.1.0, 1.0.0, 0.4.3, 0.4.2, 0.4.1, 0.4.0 (conflict: http-enumerator => wai>=0.3 && <0.4) rejecting: wai-0.3.2, 0.3.1, 0.3.0 (conflict: network==2.6.2.0, wai => network>=2.2 && <2.4) rejecting: wai-0.2.2.1, 0.2.2, 0.2.1, 0.2.0, 0.1.0, 0.0.1, 0.0.0 (conflict: http-enumerator => wai>=0.3 && <0.4) Dependency tree exhaustively searched.