Resolving dependencies... cabal: Could not resolve dependencies: trying: DnaProteinAlignment-0.0.0.1 (user goal) next goal: repa (dependency of DnaProteinAlignment-0.0.0.1) rejecting: repa-3.4.0.1 (conflict: vector==0.11.0.0, repa => vector==0.10.*) rejecting: repa-3.3.1.2, 3.3.1.1, 3.2.5.1 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.7.*) rejecting: repa-3.2.3.3, 3.2.3.2, 3.2.3.1 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.6.*) rejecting: repa-3.2.2.201204.1 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.5.*) rejecting: repa-3.2.2.3, 3.2.2.2, 3.2.2.1 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.6.*) rejecting: repa-3.2.1.1, 3.1.4.2, 3.1.4.1, 3.1.3.3, 3.1.3.2, 3.1.3.1, 3.1.2.1, 3.1.1.1 (conflict: base => ghc-prim==0.4.0.0/installed-af1..., repa => ghc-prim==0.2.*) rejecting: repa-3.1.0.1, 3.0.0.1 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.5.*) rejecting: repa-2.2.0.1, 2.1.1.6 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.4.*) rejecting: repa-2.1.1.5 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.3.*) rejecting: repa-2.1.1.4 (conflict: base==4.8.1.0/installed-4f7..., repa => base==4.4.*) rejecting: repa-2.1.1.3, 2.1.1.2, 2.1.1.1, 2.1.0.1, 2.0.2.1, 2.0.1.1, 2.0.0.4, 2.0.0.3, 2.0.0.2, 2.0.0.1 (conflict: base => ghc-prim==0.4.0.0/installed-af1..., repa => ghc-prim==0.2.*) trying: repa-1.1.0.0 next goal: dph-prim-seq (dependency of repa-1.1.0.0) rejecting: dph-prim-seq-0.7.0.1, 0.6.1.1, 0.6.0.1, 0.5.1.1 (conflict: repa => dph-prim-seq==0.4.*) Backjump limit reached (change with --max-backjumps).