I just updated Rasa Core to version 0.11.12 and I still got the error message:
"AttributeError: 'Tracker' object has no attribute 'latest_input_channel'"
"AttributeError: 'Tracker' object has no attribute 'get_latest_input_channel'"
"AttributeError: 'Tracker' object has no attribute 'get_latest_input_channel()'"
Follow the doc at: https://rasa.com/docs/core/0.11.12/_modules/rasa_core/trackers. I think this attribute should be in the tracker now.
Has anyone run into the same problem?
Finally I found the solution. Just get input_channel from Events.
input_channel = tracker.events[1]['input_channel']
Hope the input_channel will be fixed for next release of RASA.
I also updated in community: https://forum.rasa.com/t/how-to-detect-chat-platform-in-actions-py/2991/5