RASA visualize is not working

Hi, I am trying to visualize the conversation path in the way shown in this link. However, I am unable to do it. Can anyone help me with the proper guideline.?

I’ve tried using the rasa visualize command, but not working.

Thanks

I also tried this under 3.0.7 and got a blank page. I opened an issue and found a workaround that I posted there.