function bp_deactivation() {

	// Force refresh theme roots.
	delete_site_transient( 'theme_roots' );

	// Switch to WordPress's default theme if current parent or child theme
	// depend on bp-default. This is to prevent white screens of doom.
	if ( in_array( 'bp-default', array( get_template(), get_stylesheet() ) ) ) {
		switch_theme( WP_DEFAULT_THEME, WP_DEFAULT_THEME );
		update_option( 'template_root',   get_raw_theme_root( WP_DEFAULT_THEME, true ) );
		update_option( 'stylesheet_root', get_raw_theme_root( WP_DEFAULT_THEME, true ) );
	}

	/**
	 * Fires during the deactivation of BuddyPress.
	 *
	 * Use as of 1.6.0.
	 *
	 * @since 1.6.0
	 */
	do_action( 'bp_deactivation' );

	// @deprecated as of 1.6.0
	do_action( 'bp_loader_deactivate' );
}