AttributeError: 'NoneType' object has no attribute 'get' in latest RASA Version

Rasa version: rasa_core==0.14.5

Rasa X version (if used & relevant):

Python version: 3.6.1

Operating system (windows, osx, …): Windows 10

Issue:

Does not have the get module in slot class

Error (including full traceback):

Traceback (most recent call last):
  File "train_init.py", line 18, in <module>
    agent = Agent('weather_domain.yml', policies = [MemoizationPolicy(), KerasPolicy()])
  File "C:\Users\aritra.chatterjee\AppData\Local\Programs\Python\Python36\envs\chatbot\lib\site-packages\rasa_core\agent.py", line 218, in __init__
    self.domain = self._create_domain(domain)
  File "C:\Users\aritra.chatterjee\AppData\Local\Programs\Python\Python36\envs\chatbot\lib\site-packages\rasa_core\agent.py", line 669, in _create_domain
    return Domain.load(domain)
  File "C:\Users\aritra.chatterjee\AppData\Local\Programs\Python\Python36\envs\chatbot\lib\site-packages\rasa_core\domain.py", line 122, in load
    return cls.from_yaml(read_file(filename))
  File "C:\Users\aritra.chatterjee\AppData\Local\Programs\Python\Python36\envs\chatbot\lib\site-packages\rasa_core\domain.py", line 128, in from_yaml
    return cls.from_dict(data)
  File "C:\Users\aritra.chatterjee\AppData\Local\Programs\Python\Python36\envs\chatbot\lib\site-packages\rasa_core\domain.py", line 133, in from_dict
    slots = cls.collect_slots(data.get("slots", {}))
  File "C:\Users\aritra.chatterjee\AppData\Local\Programs\Python\Python36\envs\chatbot\lib\site-packages\rasa_core\domain.py", line 221, in collect_slots
    slot_class = Slot.resolve_by_type(slot_dict[slot_name].get("type"))
AttributeError: 'NoneType' object has no attribute 'get'

Command or request that led to error:

python train_init.py

Content of configuration file (config.yml) (if relevant):

Content of domain file (domain.yml) (if relevant):

[richie312]

@tabergma :

Thank you for the update.

I was doing something wrong with the yml template (space and indent issue; thats why it was none type when it was passed to slot in domain.py from rasa_core) and stories.md. As i corrected the yml format and used the appropriate stories.md. The issue resolved and now it is working.

Closing the ticket

[tabergma]

Hi @richie312! Did you consider updating to Rasa 1.0 and use the updated code here: https://github.com/JustinaPetr/Weatherbot_Tutorial/tree/master/Full_Code_Latest?

We are not maintaining the older Rasa versions anymore. So, we will not fix the issue. Feel free to fix it yourself. Otherwise, I would highly recommend to switch to Rasa 1.0.