Could you post the stack trace you're getting? Could you also print env and post what it contains? (Of course hide the password etc if it shows up.) If the contents of env is what I think it is, your ...

import minerl import gym import logging logging.basicConfig(level=logging.DEBUG) env = gym.make('MineRLNavigateDense-v0') obs, _ = env.reset() It seems that I can't connect the server. It runs very ...