Resolving dependencies... cabal: Could not resolve dependencies: next goal: haskelldb-hsql-postgresql (user goal) rejecting: haskelldb-hsql-postgresql-1.0.0 (global constraint requires ==0.10) trying: haskelldb-hsql-postgresql-0.10 trying: haskelldb-hsql-1.0.0 (dependency of haskelldb-hsql-postgresql-0.10) next goal: haskelldb (dependency of haskelldb-hsql-postgresql-0.10) rejecting: haskelldb-2.2.4, 2.2.2, 2.2.1, 2.1.1, 2.1.0, 2.0.1.1, 2.0.1, 2.0, 0.13, 0.12, 0.10 (conflict: haskelldb-hsql => haskelldb==0.11) Dependency tree exhaustively searched.