assert error

[linyufeishi]

AssertionError
Process ForkServerProcess-9:
Traceback (most recent call last):
File "/root/anaconda3/envs/algorithm_test/lib/python3.9/multiprocessing/process.py", line 315, in _bootstrap
self.run()
File "/root/anaconda3/envs/algorithm_test/lib/python3.9/multiprocessing/process.py", line 108, in run
self._target(*self._args, **self._kwargs)
File "/root/anaconda3/envs/algorithm_test/lib/python3.9/site-packages/stable_baselines3/common/vec_env/subproc_vec_env.py", line 28, in _worker
env = _patch_env(env_fn_wrapper.var())
File "/mnt/d/RL_learning/pytorch-a2c-ppo-acktr-gail/a2c_ppo_acktr/envs.py", line 47, in _thunk
env = NoopResetEnv(env, noop_max=30)
File "/root/anaconda3/envs/algorithm_test/lib/python3.9/site-packages/stable_baselines3/common/atari_wrappers.py", line 53, in init
super().init(env)
File "/root/anaconda3/envs/algorithm_test/lib/python3.9/site-packages/gymnasium/core.py", line 310, in init
assert isinstance(env, Env)
AssertionError