Resolving dependencies... cabal: Could not resolve dependencies: [__0] trying: tensorflow-mnist-0.1.0.0 (user goal) [__1] unknown package: tensorflow-mnist-input-data (dependency of tensorflow-mnist) [__1] fail (backjumping, conflict set: tensorflow-mnist, tensorflow-mnist-input-data) After searching the rest of the dependency tree exhaustively, these were the goals I've had most trouble fulfilling: tensorflow-mnist, tensorflow-mnist-input-data