BuddyPress.org

This just might help – i am not really sure that it will!
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install this https://wordpress.org/plugins/buddypress-cover-photo/

or this https://wordpress.org/plugins/bp-cover/

Sure. Use WordPress in multisite mode (alongside a domain mapping plugin), and then activate BuddyPress network-wide.

I just tested an nginx install and BuddyPress works for me.

I would say check your nginx conf file:
https://codex.wordpress.org/Nginx

But if you say this problem only occurred when you upgraded BuddyPress, then it could be a plugin issue.

What plugins are you using?

@m1000 – Nice catch!

We’ll address this for v2.6.1. In the meantime, here’s the fix:
https://buddypress.trac.wordpress.org/attachment/ticket/7141/7141.01.patch

I don’t think this is related to BuddyPress, but rather your WordPress theme.

Your homepage is rendered by WordPress and not BuddyPress.

If you want to use forums, you should use bbPress instead.

bbPress = forums plugin
BuddyPress = community plugin (member profiles, user groups, private messaging, notifications)

You can use both, but if a forum is all you need, then use bbPress.

I personally am not sure why you would move from phpBB. Installing WordPress just to use a WordPress forum plugin is not the best way to go about things unless you need to blog and use specific WordPress functionality on your site.

You should READ the error msg when you see one ! The plugin who generated the error is mentionned in it…
The support forum is here: https://fr.wordpress.org/plugins/bp-xprofile-wp-user-sync/

I got a new from WordPress and I finally got in

Great 🙂

I’ve duplicated the issue for plugins using code like this:

add_action( 'bp_include', function() {
        if ( class_exists( 'BP_Group_Extension' ) ) {
                class My_Group_Extension extends BP_Group_Extension {
                }

                bp_register_group_extension( 'My_Group_Extension' );
        }
}, 99 );

The BuddyPress Cover Photo plugin uses something similar to the above.

I’ve opened a ticket with a fix to this specific problem:
https://buddypress.trac.wordpress.org/ticket/7140

It’s a duplication of this topic:

No access to single activity item on from after BP2.6 upgrade

To roll back: download the previous version here. Delete your current version of BuddyPress and upload the older one.

@lagodny

Put this code in functions.php of your (child) theme.

function lagodny_document_title_separator_pipe( $separator ) {
    return '|';
}
add_filter('document_title_separator', 'lagodny_document_title_separator_pipe');

I assume that you are on the WordPress 4.4+.

This helped me A LOT! Solved my error. Got it from:

https://wordpress.org/support/topic/fatal-error-with-buddypress-26?replies=3#post-8563337

Open Quote:

If you’re like me and have buddypress groups turned off, this will produce the error shown. I fixed by adding this to

/wp-content/plugins/buddypress/bp-groups/classes/class-bp-group-extension.php

change:

$group_id = bp_get_current_group_id();

to:

$group_id = (bp_is_active('groups') ? bp_get_current_group_id() : '');

and change:

if ( empty( $group_id ) && bp_get_new_group_id() ) {
    $group_id = bp_get_new_group_id();
}

to:

if(bp_is_active('groups')) {
    if ( empty( $group_id ) && bp_get_new_group_id() ) {
        $group_id = bp_get_new_group_id();
    }
}

IMO, they should have tested this before pushing out an update. Hopefully they figure things out.

Close quote

I posted a topic on the Buddypress Cover Photo support forum, on wordpress.org. (Same authors as KLEO theme and support forum so easier to access). Bye !

Looks like the code example doesn’t work in your theme’s functions.php unless you change the hook from 'bp_groups_register_group_types' to 'bp_init'.

However, the code example from the codex works as-is if used in wp-content/plugins/bp-custom.php.

Going to file a bug report. Thanks for testing, @d8vjork!

Update: Here’s the ticket – https://buddypress.trac.wordpress.org/ticket/7138

Confirming, that @destac solution works ok.
First appeared in a Yoast/wordpress-seo repository open issue.