BuddyPress.org

You need to adjust the proper template.
But don’t edit the templates in the plugin or your changes will be wiped out when you update BP.
Instead, overload the template:

Theme Compatibility & Template Files

Re RED: you didn’t say which template pack you are using. I will assume it is Nouveau.
Over load this template:
wp-content\plugins\buddypress\bp-templates\bp-nouveau\buddypress\members\single\member-header.php
Then open the overload template and find this code near the top:

<?php if ( bp_is_active( 'activity' ) && bp_activity_do_mentions() ) : ?>
	<h2 class="user-nicename">@<?php bp_displayed_user_mentionname(); ?></h2>
<?php endif; ?>

And simply remove the conditional, so it will look like this:

<h2 class="user-nicename">@<?php bp_displayed_user_mentionname(); ?></h2>

Your other questions are more complex, but will require the same approach:

– identify the template(s) you need to change
– overload them
– make your changes

Solved by enabling profile fields inside buddypress settings

Same here

Fatal error: Uncaught Error: Call to undefined function bp_xprofile_fullname_field_id() in /home/promoco4/public_html/wp-content/plugins/buddypress/bp-members/bp-members-functions.php:1779 Stack trace: #0 /home/promoco4/public_html/wp-content/plugins/buddypress/bp-members/screens/register.php(204): bp_core_signup_user(‘test’, ‘123456’, ‘test@test.com’, Array) #1 /home/promoco4/public_html/wp-includes/class-wp-hook.php(286): bp_core_screen_signup(”) #2 /home/promoco4/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array) #3 /home/promoco4/public_html/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #4 /home/promoco4/public_html/wp-content/plugins/buddypress/bp-core/bp-core-dependency.php(359): do_action(‘bp_screens’) #5 /home/promoco4/public_html/wp-includes/class-wp-hook.php(286): bp_screens(”) #6 /home/promoco4/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array) #7 /home/promoco4/public_html/wp-includes/plugin.php(465): WP_Hook->do_action(Array) #8 /home/ in /home/promoco4/public_html/wp-content/plugins/buddypress/bp-members/bp-members-functions.php on line 1779

Anyone might know why this won’t this also apply to the stream after selecting a filter tab like My Friends? Works on the main feed but not after selecting a tab?

Choosing activity stream information

I just want to thank the BuddyPress team, I’m from Brazil and I’m using Google Translate.

Sorry for the misspellings!

I really appreciate buddypress and all the dedication goin into it..

but To be honest.. I dont know why that password control stuff is included in the new version.. My site users are complaining bitterly. The old password field was jst fine the way it was. … What i would like to see instead is buddypress allowing registration with phone numbers and SMS instead of email… I really dont know why the wrong thing is always included in updates.. At least there should have been an option where the admin would be able to choose whether or NOT they want the password control..

..

I would give @imath suggestion a try nonetheless.

I’m running into this same issue. Here is my debug log:
[30-Oct-2019 21:21:49 UTC] PHP Fatal error: Uncaught Error: Call to undefined function bp_xprofile_fullname_field_id() in /Users/joelabeyta/Sites/live well/public_html/wp-content/plugins/buddypress/bp-members/bp-members-functions.php:1779
Stack trace:
#0 /Users/joelabeyta/Sites/live well/public_html/wp-content/plugins/buddypress/bp-members/screens/register.php(204): bp_core_signup_user(‘jbeyta’, ‘uN*)tqIK%wMl’, ‘joel@crane-west…’, Array)
#1 /Users/joelabeyta/Sites/live well/public_html/wp-includes/class-wp-hook.php(286): bp_core_screen_signup(”)
#2 /Users/joelabeyta/Sites/live well/public_html/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(”, Array)
#3 /Users/joelabeyta/Sites/live well/public_html/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#4 /Users/joelabeyta/Sites/live well/public_html/wp-content/plugins/buddypress/bp-core/bp-core-dependency.php(359): do_action(‘bp_screens’)
#5 /Users/joelabeyta/Sites/live well/public_html/wp-includes/class-wp-hook.php(286): bp_screens(”)
#6 /Users/joelabeyta/Sites/live well/public_html/w in /Users/joelabeyta/Sites/live well/public_html/wp-content/plugins/buddypress/bp-members/bp-members-functions.php on line 1779

I’d suggest you to deactivate all plugins but BuddyPress and switch to a Twenty* theme. What you describe can be caused by another plugin or your current theme. Sometimes Cache plugins are also wrongly minifying JavaScript templates which can prevent the JavaScript to do its job.