Resolving dependencies... cabal: Could not resolve dependencies: next goal: cabal-dependency-licenses (user goal) rejecting: cabal-dependency-licenses-0.1.2.0, cabal-dependency-licenses-0.1.1.2, cabal-dependency-licenses-0.1.1.1, cabal-dependency-licenses-0.1.1.0 (constraint from user target requires ==0.1.0.1) trying: cabal-dependency-licenses-0.1.0.1 trying: bytestring-0.10.8.1/installed-0.1... (dependency of unix-2.7.2.0/installed-2.7...) next goal: Cabal (dependency of cabal-dependency-licenses-0.1.0.1) rejecting: Cabal-1.24.0.0/installed-1.2..., Cabal-1.24.2.0, Cabal-1.24.0.0, Cabal-1.22.8.0, Cabal-1.22.7.0, Cabal-1.22.6.0, Cabal-1.22.5.0, Cabal-1.22.4.0, Cabal-1.22.3.0, Cabal-1.22.2.0, Cabal-1.22.1.1, Cabal-1.22.1.0, Cabal-1.22.0.0 (conflict: cabal-dependency-licenses => Cabal>=1.20 && <1.21) rejecting: Cabal-1.20.0.4, Cabal-1.20.0.3, Cabal-1.20.0.2, Cabal-1.20.0.1, Cabal-1.20.0.0 (conflict: bytestring => deepseq==1.4.2.0/installed-1.4..., Cabal => deepseq>=1.3 && <1.4) rejecting: Cabal-1.18.1.7, Cabal-1.18.1.6, Cabal-1.18.1.5, Cabal-1.18.1.4, Cabal-1.18.1.3, Cabal-1.18.1.2, Cabal-1.18.1.1, Cabal-1.18.1, Cabal-1.18.0, Cabal-1.16.0.3, Cabal-1.16.0.2, Cabal-1.16.0.1, Cabal-1.16.0, Cabal-1.14.0, Cabal-1.12.0, Cabal-1.10.2.0, Cabal-1.10.1.0, Cabal-1.10.0.0, Cabal-1.8.0.6, Cabal-1.8.0.4, Cabal-1.8.0.2, Cabal-1.6.0.3, Cabal-1.6.0.2, Cabal-1.6.0.1, Cabal-1.4.0.2, Cabal-1.4.0.1, Cabal-1.4.0.0, Cabal-1.2.4.0, Cabal-1.2.3.0, Cabal-1.2.2.0, Cabal-1.2.1, Cabal-1.1.6, Cabal-1.24.1.0 (conflict: cabal-dependency-licenses => Cabal>=1.20 && <1.21) Dependency tree exhaustively searched.