Resolving dependencies... cabal: Could not resolve dependencies: trying: scat-1.1.0.1 (user goal) trying: base-4.8.1.0/installed-4f7... (dependency of scat-1.1.0.1) next goal: vector (dependency of scat-1.1.0.1) rejecting: vector-0.11.0.0 (conflict: scat => vector==0.10.*) trying: vector-0.10.12.3 trying: primitive-0.6.1.0 (dependency of vector-0.10.12.3) trying: transformers-0.4.2.0/installed-21d... (dependency of primitive-0.6.1.0) next goal: optparse-applicative (dependency of scat-1.1.0.1) rejecting: optparse-applicative-0.12.0.0, 0.11.0.2, 0.11.0.1, 0.11.0, 0.10.0 (conflict: scat => optparse-applicative>=0.5 && <0.10) rejecting: optparse-applicative-0.9.1.1, 0.9.1, 0.9.0 (conflict: base==4.8.1.0/installed-4f7..., optparse-applicative => base>=4 && <4.8) rejecting: optparse-applicative-0.8.1, 0.8.0.1, 0.8.0, 0.7.0.2, 0.7.0.1, 0.7.0, 0.6.0, 0.5.2.1, 0.5.2, 0.5.1, 0.5.0 (conflict: transformers==0.4.2.0/installed-21d..., optparse-applicative => transformers>=0.2 && <0.4) rejecting: optparse-applicative-0.4.3, 0.4.2, 0.4.1, 0.4.0, 0.3.2, 0.3.1, 0.3.0, 0.2.0, 0.1.1, 0.1.0, 0.0.1 (conflict: scat => optparse-applicative>=0.5 && <0.10) Dependency tree exhaustively searched.