Resolving dependencies... cabal: Could not resolve dependencies: next goal: jsaddle (user goal) rejecting: jsaddle-0.8.0.1, jsaddle-0.8.0.0, jsaddle-0.7.0.0, jsaddle-0.6.0.1, jsaddle-0.6.0.0, jsaddle-0.5.2.0, jsaddle-0.5.1.1, jsaddle-0.5.1.0, jsaddle-0.5.0.2, jsaddle-0.5.0.1, jsaddle-0.5.0.0, jsaddle-0.4.0.5, jsaddle-0.4.0.4, jsaddle-0.4.0.3, jsaddle-0.4.0.2, jsaddle-0.4.0.1, jsaddle-0.3.0.3, jsaddle-0.3.0.2, jsaddle-0.3.0.1, jsaddle-0.3.0.0, jsaddle-0.2.1.0, jsaddle-0.2.0.6, jsaddle-0.2.0.5, jsaddle-0.2.0.4, jsaddle-0.2.0.3, jsaddle-0.2.0.2, jsaddle-0.2.0.1, jsaddle-0.2.0.0, jsaddle-0.1.1.7, jsaddle-0.1.1.6, jsaddle-0.1.1.5 (constraint from user target requires ==0.1.1.4) trying: jsaddle-0.1.1.4 trying: base-4.9.0.0/installed-4.9... (dependency of jsaddle-0.1.1.4) next goal: transformers (dependency of jsaddle-0.1.1.4) 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, transformers-0.4.3.0, transformers-0.4.2.0, transformers-0.4.1.0 (conflict: jsaddle => transformers>=0.3.0.0 && <0.4) rejecting: transformers-0.3.0.0 (conflict: base==4.9.0.0/installed-4.9..., transformers => base>=2 && <4.8 || >=1.0 && <2) 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, transformers-0.5.0.2, transformers-0.4.0.0, transformers-0.2.2.0, transformers-0.1.0.0 (conflict: jsaddle => transformers>=0.3.0.0 && <0.4) Dependency tree exhaustively searched.