我只是想执行这个简单的试用代码：
import gym
env = gym.make('SpaceInvaders-v0')
env.reset()
for _ in range(1000):
env.step(env.action_space.sample())
env.render('human')
env.close()
我收到一条错误消息：
Traceback (most recent call last): File "C:\Users\91920\ML\ReinforcementLearning\space_invaders.py", line 2, in <module>
env = gym.make('SpaceInvaders-v0') File "C:\ProgramData\Anaconda3\lib\site-packages\gym\envs\registration.py", line 156, in make
return registry.make(id, **kwargs) File "C:\ProgramData\Anaconda3\lib\site-packages\gym\envs\registration.py", line 101, in make
env = spec.make(**kwargs) File "C:\ProgramData\Anaconda3\lib\site-packages\gym\envs\registration.py", line 72, in make
cls = load(self._entry_point) File "C:\ProgramData\Anaconda3\lib\site-packages\gym\envs\registration.py", line 17, in load
mod = importlib.import_module(mod_name) File "C:\ProgramData\Anaconda3\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1006, …