Resolving dependencies... cabal: Could not resolve dependencies: trying: scion-browser-0.5.0 (user goal) trying: base-4.9.0.0/installed-4.9... (dependency of scion-browser-0.5.0) trying: time-1.6.0.1/installed-1.6... (dependency of HTTP-4000.3.3) trying: http-conduit-2.2.3 (dependency of scion-browser-0.5.0) next goal: aeson (dependency of scion-browser-0.5.0) rejecting: aeson-1.0.2.1, aeson-1.0.2.0, aeson-1.0.1.0, aeson-1.0.0.0, aeson-0.11.2.1, aeson-0.11.2.0, aeson-0.11.1.4, aeson-0.11.1.3, aeson-0.11.1.2, aeson-0.11.1.1, aeson-0.11.1.0, aeson-0.11.0.0, aeson-0.9.0.1, aeson-0.9.0.0 (conflict: scion-browser => aeson>=0.4 && <0.9) rejecting: aeson-0.8.1.1, aeson-0.8.1.0, aeson-0.8.0.2 (conflict: base==4.9.0.0/installed-4.9..., aeson => base>=4.5 && <4.9) rejecting: aeson-0.7.0.6, aeson-0.7.0.4, aeson-0.6.2.1, aeson-0.6.2.0, aeson-0.6.1.0, aeson-0.6.0.2, aeson-0.6.0.1, aeson-0.6.0.0, aeson-0.5.0.0, aeson-0.4.0.1, aeson-0.4.0.0 (conflict: http-conduit => aeson>=0.8) rejecting: aeson-0.3.2.14, aeson-0.3.2.13, aeson-0.3.2.12, aeson-0.3.2.11, aeson-0.3.2.10, aeson-0.3.2.9, aeson-0.3.2.8, aeson-0.3.2.7, aeson-0.3.2.6, aeson-0.3.2.5, aeson-0.3.2.4, aeson-0.3.2.3, aeson-0.3.2.2, aeson-0.3.2.1, aeson-0.3.2.0, aeson-0.3.1.1, aeson-0.3.1.0, aeson-0.3.0.0, aeson-0.2.0.0, aeson-0.1.0.0, aeson-0.10.0.0 (conflict: scion-browser => aeson>=0.4 && <0.9) rejecting: aeson-0.8.0.1 (conflict: base==4.9.0.0/installed-4.9..., aeson => base>=4.5 && <4.9) rejecting: aeson-0.8.0.0 (conflict: time==1.6.0.1/installed-1.6..., aeson => time<1.5) rejecting: aeson-0.7.0.5, aeson-0.7.0.3, aeson-0.7.0.2, aeson-0.7.0.1, aeson-0.7.0.0 (conflict: http-conduit => aeson>=0.8) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).