Error when using CountVectorFeaturizer (Rasa Open Source 2.2.4)

[IwonaW (Iwona)]

Hi All! I get a similar error with: “…‘CountVectorizer’ object has no attribute ‘vocabulary_’”. I has it only I change in my config file 1 parametr: min_ngram. When I have “min_ngram=1” works correct, but when I train with more value than one I get errors. Anyone know how you can train a model with min_ngram larger than 1? Thank You, Iwona