Resolving dependencies... cabal: Could not resolve dependencies: next goal: accelerate-cuda (user goal) rejecting: accelerate-cuda-0.15.0.0, 0.14.0.0, 0.13.0.4, 0.13.0.3, 0.13.0.2, 0.13.0.1, 0.13.0.0, 0.12.1.2, 0.12.1.1 (global constraint requires ==0.12.1.0) trying: accelerate-cuda-0.12.1.0 trying: transformers-0.3.0.0/installed-16a... (dependency of accelerate-cuda-0.12.1.0) trying: language-c-quote-0.10.2.1 (dependency of accelerate-cuda-0.12.1.0) trying: exception-transformers-0.4.0.1 (dependency of language-c-quote-0.10.2.1) trying: transformers-compat-0.4.0.4 (dependency of exception-transformers-0.4.0.1) trying: transformers-compat-0.4.0.4:-two rejecting: transformers-compat-0.4.0.4:-three (conflict: transformers==0.3.0.0/installed-16a..., transformers-compat-0.4.0.4:three => transformers>=0.4.1 && <0.5) rejecting: transformers-compat-0.4.0.4:+three (manual flag can only be changed explicitly) Dependency tree exhaustively searched.