Resolving dependencies... cabal: Could not resolve dependencies: trying: tasty-groundhog-converters-0.1.0 (user goal) trying: transformers-0.5.2.0/installed-0.5... (dependency of primitive-0.6.1.0) trying: groundhog-th-0.7.0.1 (dependency of tasty-groundhog-converters-0.1.0) next goal: groundhog (dependency of tasty-groundhog-converters-0.1.0) rejecting: groundhog-0.7.0.3, groundhog-0.7.0.2, groundhog-0.7.0.1, groundhog-0.7.0 (conflict: transformers==0.5.2.0/installed-0.5..., groundhog => transformers>=0.2.1 && <0.5) rejecting: groundhog-0.6.0, groundhog-0.5.1, groundhog-0.5.0, groundhog-0.4.2.2, groundhog-0.4.2.1, groundhog-0.4.2, groundhog-0.4.1, groundhog-0.4.0.3, groundhog-0.4.0.2, groundhog-0.4.0.1, groundhog-0.4.0, groundhog-0.3.1.1, groundhog-0.3.1, groundhog-0.3.0.1, groundhog-0.3.0, groundhog-0.2.0, groundhog-0.1.0.2, groundhog-0.1.0.1, groundhog-0.1.0, groundhog-0.0.1.1, groundhog-0.0.1 (conflict: groundhog-th => groundhog>=0.7 && <0.8) Backjump limit reached (currently 2000, change with --max-backjumps or try to run with --reorder-goals).