Re: BuddyPress says themes are missing, but they aren't
Also, step 9 in the upgrade instructions reads…
If you are using the default themes: Delete the /wp-content/bp-themes/ folder. Move the /bp-default/ and /bp-sn-parent/ folders from the /wp-content/plugins/buddypress/bp-themes/ folder and put them into the folder /wp-content/themes/ â€” Enable the BuddyPress default theme in the â€œSite Admin > Themesâ€ menu. Finally, activate the BuddyPress default theme in â€œAppearance > Themesâ€ for the root blog of your installation.
Is that incorrect? Sorry, I may just be missing how the themes have changed.