Resolving dependencies... cabal: Could not resolve dependencies: next goal: yesod-auth-fb (user goal) rejecting: yesod-auth-fb-1.6.6, 1.6.5, 1.6.4, 1.6.3, 1.6.2.1, 1.6.2, 1.6.1, 1.6, 1.5.1, 1.5, 1.4, 1.3.2, 1.3.1, 1.3, 1.2.3, 1.2.2, 1.2.1, 1.2, 1.1, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0, 0.10.2, 0.10.1 (global constraint requires ==0.10) trying: yesod-auth-fb-0.10 trying: base-4.7.0.1/installed-e4b... (dependency of yesod-auth-fb-0.10) next goal: fb (dependency of yesod-auth-fb-0.10) rejecting: fb-1.0.10, 1.0.9, 1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0, 0.15.2, 0.15.1.1, 0.15.1, 0.15.0, 0.14.11, 0.14.10, 0.14.9, 0.14.8, 0.14.7.1, 0.14.7, 0.14.6, 0.14.5, 0.14.4.1, 0.14.4, 0.14.3, 0.14.2, 0.14.1, 0.14, 0.13.4.2, 0.13.4.1, 0.13.4, 0.13.3, 0.13.2, 0.13.1, 0.13, 0.12.9, 0.12.8, 0.12.7, 0.12.6, 0.12.5, 0.12.4.1, 0.12.3.4, 0.12.3, 0.12.2, 0.12, 0.11.2.1, 0.11.2, 0.11.1, 0.11, 0.9.7, 0.9.6, 0.9.5.1, 0.9.5, 0.9.4, 0.9.3, 0.9.1, 0.9, 0.8, 0.7.5, 0.7.4.1, 0.7.4, 0.7.3, 0.7.2, 0.7.1, 0.7 (conflict: yesod-auth-fb => fb>=0.6.0.1 && <0.7) trying: fb-0.6.0.2 next goal: conduit (dependency of fb-0.6.0.2) rejecting: conduit-1.2.4.2, 1.2.4.1, 1.2.4, 1.2.3.1, 1.2.3, 1.2.2.2, 1.2.2.1, 1.2.2, 1.2.1, 1.2.0.2, 1.2.0.1, 1.2.0, 1.1.7, 1.1.6, 1.1.5, 1.1.4, 1.1.3, 1.1.2.1, 1.1.2, 1.1.1.1, 1.1.1, 1.1.0.2, 1.1.0.1, 1.1.0, 1.0.17.1, 1.0.17, 1.0.16, 1.0.15.1, 1.0.15, 1.0.14, 1.0.13.1, 1.0.13, 1.0.12, 1.0.11.1, 1.0.11, 1.0.10.1, 1.0.10, 1.0.9.3, 1.0.9.2, 1.0.9.1, 1.0.9, 1.0.8, 1.0.7.4, 1.0.7.3, 1.0.7.2, 1.0.7.1, 1.0.7, 1.0.6, 1.0.5.1, 1.0.5, 1.0.4.2, 1.0.4.1, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0.2, 1.0.0.1, 1.0.0, 0.5.6, 0.5.5, 0.5.4.2, 0.5.4.1, 0.5.4, 0.5.3, 0.5.2.7, 0.5.2.6, 0.5.2.5, 0.5.2.4, 0.5.2.3, 0.5.2.2, 0.5.2.1, 0.5.2, 0.5.1, 0.5.0, 0.4.2, 0.4.1.1, 0.4.1, 0.4.0.1, 0.4.0, 0.3.0, 0.2.2, 0.2.1, 0.2.0 (conflict: fb => conduit>=0.1.1.1 && <0.2) rejecting: conduit-0.1.1.1 (conflict: base==4.7.0.1/installed-e4b..., conduit => base>=4.3 && <4.6) rejecting: conduit-0.1.1, 0.1.0, 0.0.4, 0.0.3, 0.0.2, 0.0.1.1, 0.0.1, 0.0.0.2, 0.0.0.1, 0.0.0 (conflict: fb => conduit>=0.1.1.1 && <0.2) Dependency tree exhaustively searched.