I'm running WP 3.5.2 with Buddypress 1.8.1 (just updated)
The theme is Frisco, child theme of Buddypress
When I activate BP Group Documents 1.3, I see my theme appears as broken, and I have a message in the dashboard that says :
ERREUR : le répertoire des thèmes est soit vide, ou n’existe pas. Veuillez vérifier votre installation.
(Theme directory is empty or doesn't exist, please check your installation)
In the Theme section :
The following themes are installed but incomplete. Themes must have a stylesheet and a template.
Frisco for BuddyPress The parent theme is missing. Please install the "bp-default" parent theme.
In the same time, WPML is broken, the "directory configuration" doesn't work at all (urls like mysite.com/en/).
The Group Documents work anyway, the website works (except for the english version).
When I deactivate BP Groups Documents, all is restored !
Thank you for your help !