Resolving dependencies... cabal: Could not resolve dependencies: next goal: persistent-odbc (user goal) rejecting: persistent-odbc-0.2.0.1, persistent-odbc-0.2.0.0, persistent-odbc-0.1.2.2, persistent-odbc-0.1.2.1 (constraint from user target requires ==0.1.2.0) trying: persistent-odbc-0.1.2.0 trying: transformers-compat-0.5.1.4 (dependency of transformers-base-0.4.4) trying: transformers-compat-0.5.1.4:-two trying: transformers-compat-0.5.1.4:+mtl trying: transformers-compat-0.5.1.4:-three next goal: monad-control (dependency of persistent-1.3.0.3) rejecting: monad-control-1.0.1.0, monad-control-1.0.0.5, monad-control-1.0.0.4, monad-control-1.0.0.3, monad-control-1.0.0.2, monad-control-1.0.0.1, monad-control-1.0.0.0 (conflict: pool-conduit => monad-control<1) rejecting: monad-control-0.3.3.1 (conflict: transformers-compat==0.5.1.4, monad-control => transformers-compat>=0.3 && <0.5) trying: monad-control-0.3.3.0 next goal: resourcet (dependency of persistent-odbc-0.1.2.0) rejecting: resourcet-1.1.8.1, resourcet-1.1.8, resourcet-1.1.7.5, resourcet-1.1.7.4, resourcet-1.1.7.3, resourcet-1.1.7.2, resourcet-1.1.7.1, resourcet-1.1.7, resourcet-1.1.6, resourcet-1.1.5, resourcet-1.1.4.1, resourcet-1.1.4, resourcet-1.1.3.3, resourcet-1.1.3.2, resourcet-1.1.3.1, resourcet-1.1.3, resourcet-1.1.2.3, resourcet-1.1.2.2, resourcet-1.1.2.1, resourcet-1.1.2, resourcet-1.1.1, resourcet-1.1.0.1, resourcet-1.1.0 (conflict: persistent => resourcet>=0.4 && <1.1) trying: resourcet-0.4.10.2 next goal: transformers (dependency of persistent-odbc-0.1.2.0) rejecting: transformers-0.5.2.0/installed-0.5..., transformers-0.5.2.0, transformers-0.5.1.0, transformers-0.5.0.1, transformers-0.5.0.0 (conflict: monad-control => transformers>=0.2 && <0.5) rejecting: transformers-0.4.3.0, transformers-0.4.2.0, transformers-0.4.1.0 (conflict: resourcet => transformers>=0.2.2 && <0.4) rejecting: transformers-0.3.0.0 (conflict: transformers-compat-0.5.1.4:three => transformers>=0.2 && <0.3 || >=0.4.1 && <0.6) rejecting: transformers-0.2.2.1, transformers-0.2.1.0, transformers-0.2.0.0, transformers-0.1.4.0, transformers-0.1.3.0, transformers-0.1.1.0, transformers-0.1.0.1, transformers-0.0.1.0, transformers-0.0.0.0 (conflict: persistent-odbc => transformers>=0.3) rejecting: transformers-0.5.0.2 (conflict: monad-control => transformers>=0.2 && <0.5) rejecting: transformers-0.4.0.0 (conflict: transformers-compat => transformers>=0.3 && <0.4 || >=0.2 && <0.3 || >=0.4.1 && <0.6) rejecting: transformers-0.2.2.0, transformers-0.1.0.0 (conflict: persistent-odbc => transformers>=0.3) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).