Resolving dependencies... cabal: Could not resolve dependencies: next goal: idris (user goal) rejecting: idris-0.99, idris-0.12.3, idris-0.12.2, idris-0.12.1, idris-0.12, idris-0.11.2, idris-0.11.1, idris-0.11, idris-0.10.3, idris-0.10.2, idris-0.10.1, idris-0.10, idris-0.9.20.2, idris-0.9.20.1, idris-0.9.20, idris-0.9.19.1, idris-0.9.19, idris-0.9.18.1, idris-0.9.18, idris-0.9.17.1, idris-0.9.17, idris-0.9.16, idris-0.9.15.1, idris-0.9.15, idris-0.9.14.3, idris-0.9.14.2, idris-0.9.14.1, idris-0.9.14, idris-0.9.13.1 (constraint from user target requires ==0.9.13) trying: idris-0.9.13 trying: trifecta-1.6.1 (dependency of idris-0.9.13) next goal: parsers (dependency of idris-0.9.13) rejecting: parsers-0.12.4, parsers-0.12.3, parsers-0.12.2.1, parsers-0.12.1.1, parsers-0.12.1, parsers-0.12, parsers-0.11.0.3, parsers-0.11.0.2 (conflict: idris => parsers>=0.9 && <0.11.0.2) rejecting: parsers-0.11.0.1, parsers-0.11, parsers-0.10.3, parsers-0.10.2, parsers-0.10.1.2, parsers-0.10.1.1, parsers-0.10.1, parsers-0.10, parsers-0.9 (conflict: trifecta => parsers>=0.12.1 && <1) rejecting: parsers-0.8.3, parsers-0.8.2, parsers-0.8.1, parsers-0.8, parsers-0.7.1, parsers-0.7, parsers-0.6, parsers-0.5.2, parsers-0.5, parsers-0.4.1, parsers-0.4, parsers-0.3.2, parsers-0.3, parsers-0.2, parsers-0.1 (conflict: idris => parsers>=0.9 && <0.11.0.2) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).