BuddyPress.org

Hi all. I’ve been using WordPress for quite a while now and thought it would be a good idea to migrate an existing site made using CakePHP 2.x to WP. To copy the old site’s look, a friend and I used underscores.me to create the theme, and so far it’s looking even better than the original site.

I stumbled upon BuddyPress and thought it would be good to use its features on the new site, but upon plugin activation, none of BP’s pages work. I can confirm that it’s a theme issue, because if I switch to Twenty Sixteen the members, activity, etc. pages work, so I would like to know the proper, most current steps (as detailed/handheld as possible) to add compatibility to my theme. I’ve searched, but frankly, I don’t know where to begin.
Thanks in advance for any help.