Resolving dependencies... cabal: Could not resolve dependencies: next goal: accelerate-cuda (user goal) rejecting: accelerate-cuda-0.15.1.1, accelerate-cuda-0.15.1.0, accelerate-cuda-0.15.0.0, accelerate-cuda-0.14.0.0, accelerate-cuda-0.13.0.4, accelerate-cuda-0.13.0.3 (constraint from user target requires ==0.13.0.2) trying: accelerate-cuda-0.13.0.2 trying: time-1.6.0.1/installed-1.6... (dependency of unix-2.7.2.0/installed-2.7...) next goal: deepseq (dependency of time-1.6.0.1/installed-1.6...) rejecting: deepseq-1.4.2.0/installed-1.4... (conflict: deepseq => array==0.5.1.1/installed-0.5..., accelerate-cuda => array>=0.3 && <0.5) rejecting: deepseq-1.4.2.0, deepseq-1.4.1.2, deepseq-1.4.1.1, deepseq-1.4.1.0, deepseq-1.4.0.0, deepseq-1.3.0.2, deepseq-1.3.0.1, deepseq-1.3.0.0, deepseq-1.2.0.1, deepseq-1.2.0.0, deepseq-1.1.0.2, deepseq-1.1.0.1, deepseq-1.1.0.0, deepseq-1.0.0.0 (conflict: time => deepseq==1.4.2.0/installed-1.4...) Dependency tree exhaustively searched.