Resolving dependencies... cabal: Could not resolve dependencies: trying: tidal-serial-0.8 (user goal) next goal: tidal (dependency of tidal-serial-0.8) rejecting: tidal-0.7.1, 0.7, 0.6, 0.5.3, 0.5.2, 0.5.1, 0.5, 0.4.36, 0.4.35, 0.4.34, 0.4.33, 0.4.32, 0.4.31, 0.4.30, 0.4.29.1, 0.4.29, 0.4.28, 0.4.27, 0.4.26, 0.4.24, 0.4.23, 0.4.21, 0.4.20, 0.4.19, 0.4.17, 0.4.16, 0.4.15, 0.4.14, 0.4.13, 0.4.12, 0.4.11, 0.4.10, 0.4.9, 0.4.8, 0.4.7, 0.4.6, 0.4.5, 0.4.4, 0.4.3, 0.4.2, 0.4.1, 0.4, 0.3.9, 0.3.8, 0.3.7, 0.3.6, 0.3.5, 0.3.4, 0.3.3, 0.3.2, 0.3.1, 0.3, 0.2.13, 0.2.11, 0.2.10, 0.2.9, 0.2.7, 0.2.6, 0.2.4, 0.2.3, 0.2.2.8, 0.2.2.7, 0.2.2.6, 0.2.2, 0.2.1, 0.2, 0.1.0.1, 0.1 (conflict: tidal-serial => tidal==0.8) Dependency tree exhaustively searched.