Resolving dependencies... cabal: Could not resolve dependencies: next goal: aws (user goal) rejecting: aws-0.12, 0.11.4, 0.11.3, 0.11.2, 0.11.1, 0.11, 0.10.5, 0.10.4, 0.10.3, 0.10.2, 0.10.1, 0.10, 0.9.4, 0.9.3, 0.9.2, 0.9.1, 0.9, 0.8.6, 0.8.5, 0.8.4, 0.8.3, 0.8.2, 0.8.1, 0.8.0, 0.7.6.4, 0.7.6.3, 0.7.6.2, 0.7.6.1, 0.7.6, 0.7.5, 0.7.4, 0.7.3, 0.7.2, 0.7.1, 0.7.0, 0.6.2, 0.6.1, 0.6.0, 0.5.0, 0.4.1, 0.4.0.1, 0.4.0, 0.3.2, 0.3.1, 0.3, 0.2, 0.1 (global constraint requires ==0.0.6) trying: aws-0.0.6 trying: base-4.7.0.1/installed-e4b... (dependency of aws-0.0.6) trying: xml-enumerator-0.4.4.1 (dependency of aws-0.0.6) trying: blaze-builder-enumerator-0.2.1.0 (dependency of xml-enumerator-0.4.4.1) trying: streaming-commons-0.1.12.1 (dependency of blaze-builder-enumerator-0.2.1.0) next goal: unix (dependency of streaming-commons-0.1.12.1) rejecting: unix-2.7.0.1/installed-0d8... (conflict: unix => bytestring==0.10.4.0/installed-9f4..., aws => bytestring==0.9.*) trying: unix-2.7.1.0 next goal: time (dependency of aws-0.0.6) rejecting: time-1.4.2/installed-bf9..., 1.5.0.1, 1.5, 1.4.2, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4, 1.3 (conflict: aws => time>=1.1.4 && <1.3) rejecting: time-1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2 (conflict: base==4.7.0.1/installed-e4b..., time => base>=4 && <4.7) rejecting: time-1.1.4 (conflict: unix => time>=1.2 && <1.6) rejecting: time-1.1.3, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2.0, 1.0 (conflict: aws => time>=1.1.4 && <1.3) Backjump limit reached (change with --max-backjumps).