Resolving dependencies... cabal: Could not resolve dependencies: next goal: rad (user goal) rejecting: rad-0.1.6.3, rad-0.1.6.2, rad-0.1.6.1, rad-0.1.6, rad-0.1.4, rad-0.1.3, rad-0.1.2, rad-0.1.1 (constraint from user target requires ==0.1) trying: rad-0.1 trying: base-4.9.0.0/installed-4.9... (dependency of rad-0.1) next goal: array (dependency of rad-0.1) rejecting: array-0.5.1.1/installed-0.5..., array-0.5.1.1, array-0.5.1.0, array-0.5.0.0, array-0.4.0.1, array-0.4.0.0, array-0.3.0.3, array-0.3.0.2, array-0.3.0.1, array-0.3.0.0 (conflict: rad => array>=0.2 && <0.3) rejecting: array-0.2.0.0 (conflict: base==4.9.0.0/installed-4.9..., array => base<4.3) rejecting: array-0.1.0.0 (conflict: rad => array>=0.2 && <0.3) Dependency tree exhaustively searched.