Resolving dependencies... cabal: Could not resolve dependencies: next goal: timeplot (user goal) rejecting: timeplot-1.0.29, 1.0.28, 1.0.27, 1.0.26, 1.0.25, 1.0.24, 1.0.23, 1.0.22, 1.0.21, 1.0.20, 1.0.19, 1.0.18, 1.0.17, 1.0.16, 1.0.15, 1.0.14, 1.0.13, 1.0.11, 1.0.10, 1.0.9, 1.0.8, 1.0.7, 1.0.6, 1.0.5, 1.0.4, 1.0.3, 1.0.1, 1.0.0, 0.3.14, 0.3.13, 0.3.12, 0.3.11, 0.3.10, 0.3.9 (global constraint requires ==0.3.8) trying: timeplot-0.3.8 trying: base-4.8.1.0/installed-4f7... (dependency of timeplot-0.3.8) trying: time-1.5.0.1/installed-c20... (dependency of timeplot-0.3.8) trying: deepseq-1.4.1.1/installed-8fb... (dependency of time-1.5.0.1/installed-c20...) next goal: haskell98 (dependency of timeplot-0.3.8) 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.*) rejecting: haskell98-2.0.0.1 (conflict: deepseq => array==0.5.1.0/installed-d42..., haskell98 => array>=0.3 && <0.5) rejecting: haskell98-2.0.0.0 (conflict: deepseq => array==0.5.1.0/installed-d42..., haskell98 => array>=0.3 && <0.4) rejecting: haskell98-1.1.0.1, 1.1.0.0, 1.0.1.1 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base>=3 && <4.6) rejecting: haskell98-1.0.1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.6) rejecting: haskell98-1.0 (conflict: base==4.8.1.0/installed-4f7..., haskell98 => base<4.3) Dependency tree exhaustively searched.