Resolving dependencies... cabal: Could not resolve dependencies: next goal: persistent-template (user goal) rejecting: persistent-template-2.1.3.7, 2.1.3.6, 2.1.3.4, 2.1.3.3, 2.1.3.1, 2.1.3, 2.1.1, 2.1.0.1, 2.1, 2.0.8, 2.0.7, 2.0.5, 2.0.1.1, 1.3.2.2, 1.3.2.1, 1.3.1.4, 1.3.1.3, 1.3.1.2, 1.3.1.1, 1.3.1, 1.3.0, 1.2.0.6, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2.0, 1.1.3.1, 1.1.3, 1.1.2.5, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2, 1.1.1, 1.1.0, 1.0.0.2, 1.0.0.1, 1.0.0, 0.9.0.2, 0.9.0.1, 0.9.0, 0.8.2, 0.8.1.2, 0.8.1.1, 0.8.1, 0.8.0, 0.7.0, 0.6.3.1, 0.6.3, 0.6.2, 0.6.1, 0.5.1, 0.5.0.1, 0.5.0, 2.1.3.5, 2.1.3.2, 2.0.4, 2.0.3.2, 2.0.3.1, 2.0.3, 2.0.2.2, 2.0.2.1, 2.0.2, 2.0.1, 2.0.0.3, 2.0.0.2 (global constraint requires ==2.0.0.1) trying: persistent-template-2.0.0.1 trying: path-pieces-0.2.0 (dependency of persistent-template-2.0.0.1) trying: time-1.5.0.1/installed-c20... (dependency of path-pieces-0.2.0) trying: monad-logger-0.3.14 (dependency of persistent-template-2.0.0.1) trying: conduit-extra-1.1.9.1 (dependency of monad-logger-0.3.14) trying: attoparsec-0.13.0.1 (dependency of conduit-extra-1.1.9.1) trying: scientific-0.3.4.2 (dependency of attoparsec-0.13.0.1) next goal: aeson (dependency of persistent-template-2.0.0.1) rejecting: aeson-0.10.0.0, 0.9.0.1, 0.9.0.0, 0.8.1.1, 0.8.1.0, 0.8.0.2 (conflict: persistent-template => aeson>=0.7 && <0.8) rejecting: aeson-0.7.0.6 (conflict: time==1.5.0.1/installed-c20..., aeson => time<1.5) rejecting: aeson-0.7.0.4 (conflict: scientific==0.3.4.2, aeson => scientific>=0.2 && <0.3) rejecting: aeson-0.6.2.1, 0.6.2.0, 0.6.1.0, 0.6.0.2, 0.6.0.1, 0.6.0.0, 0.5.0.0, 0.4.0.1, 0.4.0.0, 0.3.2.14, 0.3.2.13, 0.3.2.12, 0.3.2.11, 0.3.2.10, 0.3.2.9, 0.3.2.8, 0.3.2.7, 0.3.2.6, 0.3.2.5, 0.3.2.4, 0.3.2.3, 0.3.2.2, 0.3.2.1, 0.3.2.0, 0.3.1.1, 0.3.1.0, 0.3.0.0, 0.2.0.0, 0.1.0.0, 0.8.0.1, 0.8.0.0 (conflict: persistent-template => aeson>=0.7 && <0.8) rejecting: aeson-0.7.0.5, 0.7.0.3, 0.7.0.2, 0.7.0.1, 0.7.0.0 (conflict: time==1.5.0.1/installed-c20..., aeson => time<1.5) Backjump limit reached (change with --max-backjumps).