AttributeError: 'MyRLEnv' object has no attribute 'num_envs' about textrl HOT 2 CLOSED

Traceback (most recent call last):
  File "{...}/main.py", line 41, in <module>
    pfrl.experiments.train_agent_batch_with_evaluation(
  File "{...}lib/python3.10/site-packages/pfrl/experiments/train_agent_batch.py", line 247, in train_agent_batch_with_evaluation
    eval_stats_history = train_agent_batch(
  File "{...}lib/python3.10/site-packages/pfrl/experiments/train_agent_batch.py", line 67, in train_agent_batch
    actions = agent.batch_act(obss)
  File "{...}lib/python3.10/site-packages/torch/amp/autocast_mode.py", line 14, in decorate_autocast
    return func(*args, **kwargs)
  File "{...}lib/python3.10/site-packages/textrl/actor.py", line 115, in batch_act
    return self._batch_act_train(batch_obs)
  File "{...}lib/python3.10/site-packages/pfrl/agents/ppo.py", line 735, in _batch_act_train
    action_distrib, batch_value = self.model(b_state)
  File "{...}lib/python3.10/site-packages/torch/nn/modules/module.py", line 1194, in _call_impl
    return forward_call(*input, **kwargs)
  File "{...}lib/python3.10/site-packages/pfrl/nn/branched.py", line 30, in forward
    return tuple(mod(*args, **kwargs) for mod in self.child_modules)
  File "{...}lib/python3.10/site-packages/pfrl/nn/branched.py", line 30, in <genexpr>
    return tuple(mod(*args, **kwargs) for mod in self.child_modules)
  File "{...}lib/python3.10/site-packages/torch/nn/modules/module.py", line 1194, in _call_impl
    return forward_call(*input, **kwargs)
  File "{...}lib/python3.10/site-packages/torch/nn/modules/container.py", line 204, in forward
    input = module(input)
  File "{...}lib/python3.10/site-packages/torch/nn/modules/module.py", line 1194, in _call_impl
    return forward_call(*input, **kwargs)
  File "{...}lib/python3.10/site-packages/torch/amp/autocast_mode.py", line 14, in decorate_autocast
    return func(*args, **kwargs)
  File "{...}lib/python3.10/site-packages/textrl/actor.py", line 163, in forward
    return torch.distributions.Categorical(probs=softmax(logits / temperature))
  File "{...}lib/python3.10/site-packages/torch/nn/modules/module.py", line 1194, in _call_impl
    return forward_call(*input, **kwargs)
  File "{...}lib/python3.10/site-packages/torch/nn/modules/activation.py", line 1390, in forward
    return F.softmax(input, self.dim, _stacklevel=5)
  File "{...}lib/python3.10/site-packages/torch/nn/functional.py", line 1841, in softmax
    ret = input.softmax(dim)
IndexError: Dimension out of range (expected to be in range of [-1, 0], but got 1)