why do I get this error when I run rasa in interactive mode? and , how to solve it?
2019-08-22 15:55:08 ERROR rasa.core.training.interactive - An exception occurred while recording messages. Traceback (most recent call last): File “d:\anaconda3\envs\rasam\lib\site-packages\rasa\core\training\interactive.py”, line 1371, in record_messages await _validate_nlu(intents, endpoint, sender_id) File “d:\anaconda3\envs\rasam\lib\site-packages\rasa\core\training\interactive.py”, line 1148, in _validate_nlu valid = await _validate_user_text(latest_message, endpoint, sender_id) File “d:\anaconda3\envs\rasam\lib\site-packages\rasa\core\training\interactive.py”, line 1110, in _validate_user_text text = _as_md_message(parse_data) File “d:\anaconda3\envs\rasam\lib\site-packages\rasa\core\training\interactive.py”, line 1084, in _as_md_message return MarkdownWriter()._generate_message_md(parse_data) File “d:\anaconda3\envs\rasam\lib\site-packages\rasa\nlu\training_data\formats\markdown.py”, line 293, in _generate_message_md entities = sorted(message.get(“entities”, []), key=lambda k: k[“start”]) File “d:\anaconda3\envs\rasam\lib\site-packages\rasa\nlu\training_data\formats\markdown.py”, line 293, in entities = sorted(message.get(“entities”, []), key=lambda k: k[“start”]) KeyError: ‘start’