Resolving dependencies... cabal: Could not resolve dependencies: next goal: squeeze (user goal) rejecting: squeeze-1.0.4.12, squeeze-1.0.4.8, squeeze-1.0.4.7, squeeze-1.0.4.6, squeeze-1.0.4.5, squeeze-1.0.4.4, squeeze-1.0.4.2, squeeze-1.0.4.1, squeeze-1.0.4.0, squeeze-1.0.3.0, squeeze-1.0.2.4, squeeze-1.0.2.3, squeeze-1.0.2.2, squeeze-1.0.2.0 (constraint from user target requires ==1.0.1.4) trying: squeeze-1.0.1.4 trying: base-4.9.0.0/installed-4.9... (dependency of squeeze-1.0.1.4) trying: deepseq-1.4.2.0/installed-1.4... (dependency of parallel-3.2.1.0) next goal: haskell98 (dependency of squeeze-1.0.1.4) rejecting: haskell98-2.0.0.3 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base>=4.7 && <4.8) rejecting: haskell98-2.0.0.2 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base==4.6.*) rejecting: haskell98-2.0.0.1 (conflict: deepseq => array==0.5.1.1/installed-0.5..., haskell98 => array>=0.3 && <0.5) rejecting: haskell98-2.0.0.0 (conflict: deepseq => array==0.5.1.1/installed-0.5..., haskell98 => array>=0.3 && <0.4) rejecting: haskell98-1.1.0.1, haskell98-1.1.0.0, haskell98-1.0.1.1 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base>=3 && <4.6) rejecting: haskell98-1.0.1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base<4.6) rejecting: haskell98-1.0 (conflict: base==4.9.0.0/installed-4.9..., haskell98 => base<4.3) Dependency tree exhaustively searched.