Problem in sage for wordpress version: 8.5.2 with bootstrap v4.0.0-beta

[mikespainhower]

Is your nav walker compatible w/ Bootstrap v4.0.0-beta?

This has been discussed repeatedly here; you can probably find the solution w/ a quick search, maybe:

Navbar dropdown

Hi there, I’m working on new project in Sage and I just realized that navbar dropdown is not working at all. Bootstrap dropdown class is not being added to Worpdress submenu. Any idea how can I fix it? Thanks in advance.