'/' in slot in story causing training to fail


One of the slots in my training story contains a ‘/’ and when I try to train it outputs the message:

There is no starting story block in the training data. All your story blocks start with some checkpoint. There should be at least one story block that starts without any checkpoint.

When I remove the slashes it trains properly. My story looks like this:

  • cancel_request{“date”: “01/13/2000”, “user”: “user”}
    • slot{“person”: [“user”]}

    • slot{“date”: “01/13/2000”}

I have other stories that use the same slot (and the ‘/’) but with different intents and they work fine. All the stuff is defined in my domain file also