Error: 'data_frame_' is not an exported object from 'namespace:dplyr'

[jaimeortiz-david]

Hi,

I am encountering an error message after running the train_model function.

Error: 'data_frame_' is not an exported object from 'namespace:dplyr'

Also, many of the parameters of the mallet_model object appear as NULL (e.g., top_words:NULL).

I will appreciate any help you could provide.

Kind regards,

Jaime