@Mayankgbrc @erohmensing
I am facing this same issue. I am following Rasa Master Class #6 and have set up and started the action server. The server is started and the action function is registered at this point the error occurs.
TypeError: type object argument after ** must be a mapping, not NoneType. I am using PyCharm as my editor, if that matters.
Any help / direction would be much appreciated.
VN