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