Resolving dependencies...
cabal: Could not resolve dependencies:
next goal: aws (user goal)
rejecting: aws-0.15, aws-0.14.1, aws-0.14.0, aws-0.13.2, aws-0.13.1,
aws-0.13.0, aws-0.12.1, aws-0.12, aws-0.11.4, aws-0.11.3, aws-0.11.2,
aws-0.11.1, aws-0.11, aws-0.10.5, aws-0.10.4, aws-0.10.3, aws-0.10.2,
aws-0.10.1, aws-0.10, aws-0.9.5, aws-0.9.4, aws-0.9.3, aws-0.9.2, aws-0.9.1,
aws-0.9, aws-0.8.6, aws-0.8.5, aws-0.8.4, aws-0.8.3, aws-0.8.2, aws-0.8.1,
aws-0.8.0, aws-0.7.6.4, aws-0.7.6.3, aws-0.7.6.2, aws-0.7.6.1, aws-0.7.6,
aws-0.7.5, aws-0.7.4, aws-0.7.3, aws-0.7.2, aws-0.7.1, aws-0.7.0, aws-0.6.2,
aws-0.6.1, aws-0.6.0, aws-0.5.0, aws-0.4.1, aws-0.4.0.1, aws-0.4.0, aws-0.3.2,
aws-0.3.1 (constraint from user target requires ==0.3)
trying: aws-0.3
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: transformers (dependency of aws-0.3)
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,
transformers-0.3.0.0 (conflict: aws => transformers>=0.2.2.0 && <0.3)
rejecting: transformers-0.2.2.1 (conflict: transformers-compat-0.5.1.4:three
=> transformers>=0.4.1 && <0.6)
rejecting: 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 (conflict: aws => transformers>=0.2.2.0 && <0.3)
rejecting: transformers-0.2.2.0 (conflict: transformers-compat-0.5.1.4:three
=> transformers>=0.4.1 && <0.6)
rejecting: transformers-0.1.0.0 (conflict: aws => transformers>=0.2.2.0 &&
<0.3)
Dependency tree exhaustively searched.