Ошибка создания среды Gym OpenAI. OSError: [WinError 126] Не найден указанный модуль

Здраствуйте, в чем может быть проблема?

env = gym.make("MsPacman-v0")
n_outputs = env.action_space.n

При вызове кода выдает ошибку.

OSError                                   Traceback (most recent call last)
<ipython-input-4-be4db45acff9> in <module>
----> 1 env = gym.make("MsPacman-v0")
      2 n_outputs = env.action_space.n

D:\Users\gumin\anaconda3\lib\site-packages\gym\envs\registration.py in make(id, **kwargs)
    154 
    155 def make(id, **kwargs):
--> 156     return registry.make(id, **kwargs)
    157 
    158 def spec(id):

D:\Users\gumin\anaconda3\lib\site-packages\gym\envs\registration.py in make(self, path, **kwargs)
     99             logger.info('Making new env: %s', path)
    100         spec = self.spec(path)
--> 101         env = spec.make(**kwargs)
    102         # We used to have people override _reset/_step rather than
    103         # reset/step. Set _gym_disable_underscore_compat = True on

D:\Users\gumin\anaconda3\lib\site-packages\gym\envs\registration.py in make(self, **kwargs)
     70             env = self.entry_point(**_kwargs)
     71         else:
---> 72             cls = load(self.entry_point)
     73             env = cls(**_kwargs)
     74 

D:\Users\gumin\anaconda3\lib\site-packages\gym\envs\registration.py in load(name)
     15 def load(name):
     16     mod_name, attr_name = name.split(":")
---> 17     mod = importlib.import_module(mod_name)
     18     fn = getattr(mod, attr_name)
     19     return fn

D:\Users\gumin\anaconda3\lib\importlib\__init__.py in import_module(name, package)
    125                 break
    126             level += 1
--> 127     return _bootstrap._gcd_import(name[level:], package, level)
    128 
    129 

D:\Users\gumin\anaconda3\lib\importlib\_bootstrap.py in _gcd_import(name, package, level)

D:\Users\gumin\anaconda3\lib\importlib\_bootstrap.py in _find_and_load(name, import_)

D:\Users\gumin\anaconda3\lib\importlib\_bootstrap.py in _find_and_load_unlocked(name, import_)

D:\Users\gumin\anaconda3\lib\importlib\_bootstrap.py in _load_unlocked(spec)

D:\Users\gumin\anaconda3\lib\importlib\_bootstrap_external.py in exec_module(self, module)

D:\Users\gumin\anaconda3\lib\importlib\_bootstrap.py in _call_with_frames_removed(f, *args, **kwds)

D:\Users\gumin\anaconda3\lib\site-packages\gym\envs\atari\__init__.py in <module>
----> 1 from gym.envs.atari.atari_env import AtariEnv

D:\Users\gumin\anaconda3\lib\site-packages\gym\envs\atari\atari_env.py in <module>
      7 
      8 try:
----> 9     import atari_py
     10 except ImportError as e:
     11     raise error.DependencyNotInstalled(

D:\Users\gumin\anaconda3\lib\site-packages\atari_py\__init__.py in <module>
----> 1 from .ale_python_interface import *
      2 import os
      3 
      4 def _game_dir():
      5     return os.path.join(os.path.abspath(os.path.dirname(__file__)), "atari_roms")

D:\Users\gumin\anaconda3\lib\site-packages\atari_py\ale_python_interface.py in <module>
     16 else:
     17     ale_lib = cdll.LoadLibrary(os.path.join(os.path.dirname(__file__),
---> 18                                             'ale_interface/ale_c.dll'))
     19 
     20 ale_lib.ALE_new.argtypes = None

D:\Users\gumin\anaconda3\lib\ctypes\__init__.py in LoadLibrary(self, name)
    440 
    441     def LoadLibrary(self, name):
--> 442         return self._dlltype(name)
    443 
    444 cdll = LibraryLoader(CDLL)

D:\Users\gumin\anaconda3\lib\ctypes\__init__.py in __init__(self, name, mode, handle, use_errno, use_last_error)
    362 
    363         if handle is None:
--> 364             self._handle = _dlopen(self._name, mode)
    365         else:
    366             self._handle = handle

OSError: [WinError 126] Не найден указанный модуль