Traceback (most recent call last):


 "/home/sid/anaconda3/envs/rasa/bin/rasa", line 8, in <module>

sys.exit(main())


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/__main__.py", line 92, in main

cmdline_arguments.func(cmdline_arguments)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/cli/train.py", line 76, in train

additional_arguments=extract_additional_arguments(args),


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/train.py", line 50, in train

additional_arguments=additional_arguments,


 "uvloop/loop.pyx", line 1456, in uvloop.loop.Loop.run_until_complete


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/train.py", line 101, in train_async

additional_arguments,


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/train.py", line 188, in _train_async_internal

additional_arguments=additional_arguments,


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/train.py", line 223, in _do_training

additional_arguments=additional_arguments,


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/train.py", line 361, in _train_core_with_validated_data

additional_arguments=additional_arguments,


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/train.py", line 66, in train

agent.train(training_data, **additional_arguments)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/agent.py", line 742, in train

self.policy_ensemble.train(training_trackers, self.domain, **kwargs)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/policies/ensemble.py", line 124, in train

policy.train(training_trackers, domain, **kwargs)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/policies/memoization.py", line 163, in train

self._add_states_to_lookup(trackers_as_states, trackers_as_actions, domain)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/policies/memoization.py", line 110, in _add_states_to_lookup

feature_item = domain.index_for_action(action)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/domain.py", line 548, in index_for_action

self._raise_action_not_found_exception(action_name)


 "/home/sid/anaconda3/envs/rasa/lib/python3.6/site-packages/rasa/core/domain.py", line 553, in _raise_action_not_found_exception

f"Cannot access action '{action_name}', "
NameError: Cannot access action '', as that name is not a registered action for this domain. Available actions are: 

Traceback (most recent call last):



 "train.py", line 210, in <module>


env_wrapper = get_wrapper_class(hyperparams)



 "C:\Users\meric\OneDrive\Masaüstü\TUM\Thesis\Zoo\rl-baselines-zoo\utils\utils.py", line 130, in get_wrapper_class


wrapper_module = importlib.import_module(get_module_name(wrapper_name))



 "C:\Users\meric\Anaconda3\envs\pioneer\lib\importlib\__init__.py", line 127, in import_module


return _bootstrap._gcd_import(name[level:], package, level)



 "<frozen importlib._bootstrap>", line 1006, in _gcd_import



 "<frozen importlib._bootstrap>", line 983, in _find_and_load



 "<frozen importlib._bootstrap>", line 967, in _find_and_load_unlocked



 "<frozen importlib._bootstrap>", line 677, in _load_unlocked



 "<frozen importlib._bootstrap_external>", line 728, in exec_module



 "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed



 "C:\Users\meric\OneDrive\Masaüstü\TUM\Thesis\Zoo\rl-baselines-zoo\utils\wrappers.py", line 78, in <module>


class Monitor(gym.Wrapper):



 "C:\Users\meric\OneDrive\Masaüstü\TUM\Thesis\Zoo\rl-baselines-zoo\utils\wrappers.py", line 96, in Monitor


info_keywords=()):
NameError: name 'Optional' is not defined 
```
