When I run the following command:
python -m rasa_core.train \
interactive -o models/dialogue \
-d domain.yml -c policy_config.yml \
-s data/stories.md \
--nlu models/current/nlu \
--endpoints endpoints.yml
I get the following error:
TypeError: type object argument after ** must be a mapping, not NoneType
What do you think is the problem and how do I solve it?