BuddyPress.org

If you install BP it will install on the main blog. It will not install on other blogs in a MU installation. You can only have it installed on one blog at a time. BuddyPress is very much tied to a theme. So if your main site doesn’t have a BP enabled theme then you really don’t even see it as you need special template files to output BP content

@poodyglitz first thing I’d do is to isolate what could be causing erratic behavior. Deactivate all plugins except BP and change theme to bp-default. Then check if you can now add links and forum posts. If that’s cool, then proceed to activate your theme, then plugins one by one while adding links and forum posts between each activation.

@modemlooper

Ya beat me to it!

It only works on one blog on a multisite installation. The login data is WP user data so that works across all blogs but the actual BP theme/ site attaches to the first blog. If you want to have is separated, like on a url community.url.com then you need to change some settings. https://codex.buddypress.org/getting-started/install-buddypress-on-a-secondary-blog/

@faceteletv

You’ll need to increase the filesize upload limits. See this post for some helpful tips:
https://buddypress.org/community/groups/installing-buddypress/forum/topic/installing-buddypress-1-2-6-to-wordpress-3-0-1/

@v_andreev

Like @modemlooper said, xprofile fields are added through your WordPress backend admin area (MUCH easier than trying to hack your way through register.php).

Go to “Buddypress” > “Profile Field Setup” and add your registration fields there. Any fields you add in the first (“Base”) group will appear on your registration page.

@27Surf

Your frustration is understandable, especially since Modularity Lite is not a Buddypress-ready theme.
Have you tried contacting the theme author for help?
Have you been using the Buddypress Template Pack to modify your theme’s templates for Buddypress?

You can also try other, easier to modify themes that are Buddypress-ready.
I’ve put one together called BuddyLite that has a few one-click options like one or two sidebars, a full-page template (no sidebars), and more. http://buddylite.com/buddylite-basic/
There’s also a premium version – BuddyBuilder – with over 100 options so you can customize the heck out of it! http://buddylite.com/buddybuilder/

I am having trouble getting Facebook to accept a buddy press page – of any sort but the biggest issue is the profile page.
the symptoms are:
facebook reads the url and does nto record the title
but the page does have a title

if you do have a page that does work I would love to see it and examine
the code differences as it may help me discover the issue
gus@proshotphoto.com

It’s a bug. See if you can go to wordpress.org login and change name to not have a space.

No ; if you need to deactivate by re-naming and have ftp access do it that way, as long as the plugin is renamed and nothing else running then you ought to be back in business with WP – I’d be surprised if BP was running or needed renaming but for the sake of it rename it ‘buddypress-deactivated’ then you ought to be able to log in to the dashboard, but do ensure WP is running correctly before returning buddypress to it’s correct name so that it may be activated on the plugins page.

Six posts back??!!

I’m not really sure what you are having a problem with here, but please re-read that post I wrote earlier.

If Buddypress is deactivated and no other themes are installed & running then WP should fall back to using twentyten default theme.

Already explained that! in the crudest base sense you can rename a plugin to force deactivate it. No plugin would have made any changes to another plugins core files, thus buddypress files would have been fine unless you had modified any.