Word Tree not displaying

[Kejoa]

Hi,

I cloned the Dex repo and followed the tutorial videos. However, on the visualization demo, for the word tree using the AnnabeiLee.dex, the word tree graph is not displayed and when I look at the terminal output, I get this message:
'No GUI definition for: 'Word Tree' : Add getGuiDefinition() function to 'web/google/wordTree.gtmpl'

I tried this both on Windows 10 and Ubuntu 16.04. I get the same issue and message.

Any suggestion on how I can overcome this?