Resolving dependencies... cabal: Could not resolve dependencies: trying: accelerate-fourier-benchmark-0.0.0.1 (user goal) trying: base-4.9.0.0/installed-4.9... (dependency of accelerate-fourier-benchmark-0.0.0.1) next goal: accelerate-cuda (dependency of accelerate-fourier-benchmark-0.0.0.1) rejecting: accelerate-cuda-0.17.0.0 (conflict: accelerate-fourier-benchmark => accelerate-cuda>=0.16 && <0.17) rejecting: accelerate-cuda-0.16.0.0 (conflict: base==4.9.0.0/installed-4.9..., accelerate-cuda => base>=4.7 && <4.9) rejecting: accelerate-cuda-0.15.0.0, accelerate-cuda-0.14.0.0, accelerate-cuda-0.13.0.4, accelerate-cuda-0.13.0.3, accelerate-cuda-0.13.0.2, accelerate-cuda-0.13.0.1, accelerate-cuda-0.13.0.0, accelerate-cuda-0.12.1.2, accelerate-cuda-0.12.1.1, accelerate-cuda-0.12.1.0, accelerate-cuda-0.12.0.0, accelerate-cuda-0.15.1.1, accelerate-cuda-0.15.1.0 (conflict: accelerate-fourier-benchmark => accelerate-cuda>=0.16 && <0.17) Dependency tree exhaustively searched.