BuddyPress.org

hi,
finally i found a plugin to manage it:
https://wordpress.org/plugins/buddypress-auto-group-join/screenshots/

thanks,

Sorry I didn’t include the code for that. Yes, it is in the wp functions.php file, but it is relevant to bp theme. Here is the full function that line 100 is found in. Line 100 is the third to last, which starts with “add action”.

/**
 * Sets up theme defaults and registers support for various WordPress and BuddyPress features.
 *
 * Note that this function is hooked into the after_setup_theme hook, which runs
 * before the init hook. The init hook is too late for some features, such as indicating
 * support post thumbnails.
 *
 * To override bp_dtheme_setup() in a child theme, add your own bp_dtheme_setup to your child theme's
 * functions.php file.
 *
 * @global BuddyPress $bp The one true BuddyPress instance
 * @since BuddyPress (1.5)
 */
function bp_dtheme_setup() {

	// Load the AJAX functions for the theme
	require( get_template_directory() . '/_inc/ajax.php' );

	// This theme styles the visual editor with editor-style.css to match the theme style.
	add_editor_style();

	// This theme comes with all the BuddyPress goodies
	add_theme_support( 'buddypress' );

	// This theme uses post thumbnails
	add_theme_support( 'post-thumbnails' );

	// Add default posts and comments RSS feed links to head
	add_theme_support( 'automatic-feed-links' );

	if ( ! is_admin() || ( defined( 'DOING_AJAX' ) && DOING_AJAX ) ) {
		// Register buttons for the relevant component templates
		// Friends button
		if ( bp_is_active( 'friends' ) )
			add_action( 'bp_member_header_actions',    'bp_add_friend_button',           5 );

		// Activity button
		if ( bp_is_active( 'activity' ) && bp_activity_do_mentions() )
			add_action( 'bp_member_header_actions',    'bp_send_public_message_button',  20 );

		// Messages button
		if ( bp_is_active( 'messages' ) )
			add_action( 'bp_member_header_actions',    'bp_send_private_message_button', 20 );

		// Group buttons
		if ( bp_is_active( 'groups' ) ) {
			add_action( 'bp_group_header_actions',     'bp_group_join_button',           5 );
			add_action( 'bp_directory_groups_actions', 'bp_group_join_button' );
		}

		// Blog button
		if ( bp_is_active( 'blogs' ) )
			add_action( 'bp_directory_blogs_actions',  'bp_blogs_visit_blog_button' );
	}
}
add_action( 'after_setup_theme', 'bp_dtheme_setup' );
endif;

if ( !function_exists( 'bp_dtheme_enqueue_scripts' ) ) :

In the first install the failed bp had been installed and working for a few days. It suddenly gave errors when I edited a css color code on line 1211 in this file and uploaded it to the server by ftp. Yeah, I know you might say I made a mistake, but I know I did it correctly. And they you might say the file got corrupted in transfer, except that the second install on godaddy had no such changes or transfers and in short order – less than an hour of use with no other plugins or style changes – gave the same final error for line 100 when I changed my public name in the buddypress members listing, at which point neither the front nor back ends were accessible.

Looking forward to your insights.

Here is more information about our installation.

8. Do you have any plugins other than BuddyPress installed and activated? If so, which ones?

All In One SEO Pack
Version 2.0.3.1 | By Michael Torbert

Antispam Bee
Version 2.5.9 | By Sergej Müller

AntiVirus
Version 1.3.4 | By Sergej Müller

bbPress
Version 2.4 | By The bbPress Community

Better WordPress Minify
Version 1.2.2 | By Khang Minh

Broken Link Checker
Version 1.8.3 | By Janis Elsts

BuddyPress
Version 1.8.1 | By The BuddyPress Community

Contact Form 7
Version 3.5.2 | By Takayuki Miyoshi

Duplicate Post
Version 2.4.1 | By Enrico Battocchi

Google Analyticator
Version 6.4.5 | By Video User Manuals Pty Ltd

NGFB Open Graph+ Pro
Version 6.8 | By Jean-Sebastien Morisset

Revolution Slider
Version 3.0.7 | By ThemePunch

Social Login for wordpress
Version 4.8 | By LoginRadius Team

TinyMCE Advanced
Version 3.5.8 | By Andrew Ozz

W3 Total Cache
Version 0.9.3 | By Frederick Townes

Widget Importer & Exporter
Version 1.0 | By Steven Gliebe

WordPress Social Share Buttons
Version 1.1.3 | By Lee Chestnutt

WP-Memory-Usage
Version 1.2.1 | By Alex Rabe

WP Sliding Login | Register Panel
Version 2.3 | By Kyle Powning @ The Factory

WP Smush.it
Version 1.6.5.3 | By WPMU DEV

9. Are you using the standard BuddyPress themes or customized themes?

I’m using another theme callet BulletPress from HB-Themes

10. Have you modified the core files in any way?

I haven’t modified any BP related files, but I do use a child theme with a custom functions.php

11. Do you have any custom functions in bp-custom.php?

No

12. If running bbPress, which version? Or did your BuddyPress install come with a copy of bbPress built-in?

Our theme came with bbPress, see above for version.

14. Which company provides your hosting?

PlanetHoster

Not sure why my code got cut off. Will try it again:

<h2 class="author-title">Posts By <a href="<?php the_author_posts_link(); ?>"><?php the_author_meta('display_name', $author_id); ?></a> </h2>