Resolving dependencies... cabal: Could not resolve dependencies: next goal: csound-expression (user goal) rejecting: csound-expression-4.9.1, 4.9.0, 4.8.4, 4.8.3, 4.8.2, 4.8.1, 4.8, 4.7.1, 4.7, 4.6.1, 4.6, 4.5, 4.4.1, 4.4, 4.3, 4.2.1, 4.2.0, 4.1.0, 4.0.0, 3.3.2, 3.3.1, 3.3.0, 3.2.3, 3.2.1, 3.1.1, 3.1.0, 3.0.1, 3.0.0, 1.1.1, 1.0.4, 1.0.3, 1.0.2, 1.0.1, 1.0.0, 0.3.4, 0.3.3, 0.3.2, 0.3.1, 0.3.0, 0.2.0, 0.1.0, 0.0.3, 0.0.2 (global constraint requires ==0.0.1) trying: csound-expression-0.0.1 trying: base-4.8.1.0/installed-4f7... (dependency of csound-expression-0.0.1) next goal: haskell98 (dependency of csound-expression-0.0.1) rejecting: haskell98-2.0.0.3 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=4.7 && <4.8) rejecting: haskell98-2.0.0.2 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base==4.6.*) trying: haskell98-2.0.0.1 next goal: array (dependency of haskell98-2.0.0.1) rejecting: array-0.5.1.0/installed-d42..., 0.5.1.0, 0.5.0.0 (conflict: haskell98 => array>=0.3 && <0.5) rejecting: array-0.4.0.1 (conflict: base==4.8.1.0/installed-4f7..., array => base>=4.2 && <4.7) rejecting: array-0.4.0.0 (conflict: base==4.8.1.0/installed-4f7..., array => base>=4.2 && <4.6) rejecting: array-0.3.0.3 (conflict: base==4.8.1.0/installed-4f7..., array => base>=4.2 && <4.5) rejecting: array-0.3.0.2, 0.3.0.1 (conflict: base==4.8.1.0/installed-4f7..., array => base>=4.2 && <4.4) rejecting: array-0.3.0.0 (conflict: base==4.8.1.0/installed-4f7..., array => base>=3 && <4.4) rejecting: array-0.2.0.0, 0.1.0.0 (conflict: haskell98 => array>=0.3 && <0.5) Dependency tree exhaustively searched.