Resolving dependencies... cabal: Could not resolve dependencies: next goal: persistent-mysql (user goal) rejecting: persistent-mysql-2.6, persistent-mysql-2.5, persistent-mysql-2.3.0.2, persistent-mysql-2.3.0.1, persistent-mysql-2.3, persistent-mysql-2.2, persistent-mysql-2.1.3.1, persistent-mysql-2.1.3, persistent-mysql-2.1.2.1, persistent-mysql-2.1.2, persistent-mysql-2.1.1, persistent-mysql-2.1, persistent-mysql-1.3.1, persistent-mysql-1.3.0.2, persistent-mysql-1.3.0.1, persistent-mysql-1.3.0, persistent-mysql-1.2.1, persistent-mysql-1.2.0, persistent-mysql-1.1.4, persistent-mysql-1.1.3, persistent-mysql-1.1.2, persistent-mysql-1.1.0, persistent-mysql-1.0.2, persistent-mysql-1.0.1, persistent-mysql-1.0.0, persistent-mysql-0.9.0.3, persistent-mysql-0.9.0.2, persistent-mysql-0.9.0.1, persistent-mysql-0.9.0, persistent-mysql-0.8.4, persistent-mysql-0.8.3, persistent-mysql-0.8.2, persistent-mysql-0.8.1 (constraint from user target requires ==0.8.0) trying: persistent-mysql-0.8.0 trying: aeson-1.0.2.1 (dependency of persistent-mysql-0.8.0) next goal: text (dependency of persistent-mysql-0.8.0) rejecting: text-1.2.2.1, text-1.2.2.0, text-1.2.1.3, text-1.2.1.2, text-1.2.1.1, text-1.2.1.0, text-1.2.0.6, text-1.2.0.5, text-1.2.0.4, text-1.2.0.3, text-1.2.0.2, text-1.2.0.0, text-1.1.1.4, text-1.1.1.3, text-1.1.1.2, text-1.1.1.1, text-1.1.1.0, text-1.1.0.1, text-1.1.0.0, text-1.0.0.1, text-1.0.0.0 (conflict: persistent-mysql => text>=0.7 && <0.12) rejecting: text-0.11.3.1, text-0.11.3.0, text-0.11.2.3, text-0.11.2.2, text-0.11.2.1, text-0.11.2.0, text-0.11.1.13, text-0.11.1.12, text-0.11.1.11, text-0.11.1.10, text-0.11.1.9, text-0.11.1.8, text-0.11.1.7, text-0.11.1.6, text-0.11.1.5, text-0.11.1.3, text-0.11.1.2, text-0.11.1.1, text-0.11.1.0, text-0.11.0.8, text-0.11.0.7, text-0.11.0.6, text-0.11.0.5, text-0.11.0.4, text-0.11.0.3, text-0.11.0.2, text-0.11.0.1, text-0.11.0.0, text-0.10.0.2, text-0.10.0.1, text-0.10.0.0, text-0.9.1.0, text-0.9.0.1, text-0.9.0.0, text-0.8.1.0, text-0.8.0.0, text-0.7.2.1, text-0.7.1.0, text-0.7.0.1, text-0.7 (conflict: aeson => text>=1.1.1.0) rejecting: text-0.6, text-0.5, text-0.4, text-0.3, text-0.2, text-0.1 (conflict: persistent-mysql => text>=0.7 && <0.12) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).