Getting an environment error with RLlib in PettingZoo Classic

  • High: It blocks me to complete my task.

AttributeError: The base environment does not have an possible_agents attribute. Use the environments observation_space method instead

Trying to get connect_four_v3 running and I’m getting this error. Tips on debugging this/examples of what works? It is using 2.2.0. I’m very new to RLlib.