Resolving dependencies... cabal: Could not resolve dependencies: next goal: cpython (user goal) rejecting: cpython-3.3.0, 3.2.0, 3.1.4, 3.1.3, 3.1.2.1 (global constraint requires ==3.1.2.0) trying: cpython-3.1.2.0 trying: base-4.7.0.1/installed-e4b... (dependency of cpython-3.1.2.0) next goal: text (dependency of cpython-3.1.2.0) rejecting: text-1.2.1.0, 1.2.0.6, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.0, 1.1.1.4, 1.1.1.3, 1.1.1.2, 1.1.1.1, 1.1.1.0, 1.1.0.1, 1.1.0.0, 1.0.0.1, 1.0.0.0, 0.11.3.1, 0.11.3.0, 0.11.2.3, 0.11.2.2, 0.11.2.1, 0.11.2.0, 0.11.1.13, 0.11.1.12, 0.11.1.11, 0.11.1.10, 0.11.1.9, 0.11.1.8, 0.11.1.7, 0.11.1.6, 0.11.1.5, 0.11.1.3, 0.11.1.2, 0.11.1.1, 0.11.1.0, 0.11.0.8, 0.11.0.7, 0.11.0.6, 0.11.0.5, 0.11.0.4, 0.11.0.3, 0.11.0.2, 0.11.0.1, 0.11.0.0 (conflict: cpython => text>=0.1 && <0.11) rejecting: text-0.10.0.2, 0.10.0.1, 0.10.0.0, 0.9.1.0, 0.9.0.1, 0.9.0.0 (conflict: base==4.7.0.1/installed-e4b..., text => base<4.4) rejecting: text-0.8.1.0, 0.8.0.0, 0.7.2.1 (conflict: base==4.7.0.1/installed-e4b..., text => base<4.3) rejecting: text-0.7.1.0, 0.7.0.1, 0.7, 0.6, 0.5, 0.4, 0.3, 0.2, 0.1 (conflict: base==4.7.0.1/installed-e4b..., text => base<4.4) Dependency tree exhaustively searched.