Headers Already Sent out errors are almost always caused by blank spaces in the PHP file, check that you don’t have ANY extra spaces in the files first ?php by mistakenly pressing enter. You can compare so see if you have by downloading buddypress and looking at the original file
Or, an easier way, is to just copy the original file from buddypress. (manually download it on the site)
Copy the bp-messages.php and ajax.php and paste them into your directories
@gunju2221
1. Default
2. Yes Im using quite a lot of plugins
3. Not to functions and im only using a Child theme
4. Latest version
Sorry for not noticing your post.
1. Are you using custom or default theme?
2. Did you recently add any plugins relating to buddypress?
3. Did you recently make any changes to the core or any other important files? (functions.php)
4. What version of buddypress are u using?
Sorry, but can you give more specific details of what is wrong? Because by looking at your site nothing looks really wrong..
And the file listed is index.php of what directory? (Groups, Forums)
@mercime, yes I understand that 
@nahumadrid, now you can understand the confusion I got Anyway thank you for explaining
what I meant as “standalone” BP is the one used with WPMU. In my case, I’m using BP plugin for WP (not WPMU). Things that I still dont know is the way to setup BP-forums. I can’t find it anywhere inside WP Dashboard . There is no particular setting-page for BP-forums, let say to add forum and sub-forum etc
the other thing I need to know is whether I can use BBpress plugin for BP-forums? If yes, where should I install it? If no, is there any particular plugin for adding functionality to BP-forums?
=== i need more serious response ===
@nahummadrid said it straight and clear, there’s no BuddyPress without WordPress. There’s no standalone BuddyPress. BuddyPress is a WordPress plugin.
@ganesi Buddypress is a plugin for a wordpress blog. Once activated on the wordpress blog, BP components/features/functionality will only fully work if you have a theme that is compatible with the Buddypress plugin.
The buddypress plugin comes with a default theme you can use. And that is a Buddypress default setup, I think that is what you might be refering to as “standalone” bp. its not really standalone, it’s a theme that comes with the BP plugin that you enable first then activate the BP plugin.
the buddypress plugin itself is a suite of “plugins” including the forums. Once you have a bp ready theme and buddypress plugin activated you can then activate the forums component(“bbpress plugin”) in the bp admin. once you have the forums activated you can then add additional features to your BP-forum by way of more Bp forum specific plugins. phew.
hope that helps, i kinda confused myself for a minute there. that’s a lot plugins on plugins crisscrossing there.
ah come on…i need more serious response
without wordpress there would be no buddypress. Buddypress only works on wordpress my dear 
@davidhund this project is going forward as we speak, Boone is working on it today even. Any donations are welcome, and will certainly speed up development.
Apparently, you’re guide isn’t made for BuddyPress. I may be wrong here, but I’m pretty sure just about every person who has used Page Cache with BuddyPress had to disable it.
Thanks paul , oke hnla thanks for notice it.
Topic closed
Minor note for all: please never state ‘urgent’ in a thread title, thread titles on tech support forums are meant to be descriptive of the nature of the issue only
Set which blog ID BuddyPress will run on:
define ( ‘BP_ROOT_BLOG’, 2 );
For site ID=2, for example. Put in your wp-confit
@jarvo1980
@hnla
Great tutorial! Got it working!
Anyone know how to remove remove the automatic links in these fields?
my website running on windows server
Wordpress version : WordPress 3.0.1.
Buddypress Version 1.2.7
i was give permission of 777, but still it doesn’t display user avatar, its display default avatar (mystery-man)
while user was upload their own avatar. but its doesnt seen in profile,.
its very urgent for me.
please give me other solution,
i was already talk with my hosting provider but he was told me permission is 777 for wp-content.
please guide me.
thanks
Well there you go!
@fellowchirps now you know what plugin you installed that caused this if you have follow up questions on it please post them to the plugin authors group:
https://buddypress.org/community/groups/bp-my-home/
It means you’re using BP My Home plugin.
You only have to go to WordPress Backend / BuddyPress Menu / BPMH Manger submenu to display the list of available widgets. Then activate the ones you want to make available to users.
I’m afraid based on the info you have provided it is impossible for us to make any stab in the dark, not even sure this is a BuddyPress issue. You will simply need to look at your plugins and see which looks like the most promising culprit, and/or check through your widgets and see which appear to have more than one that need activating.
by that, I meant we will use the WP admin bar if we have time. Otherwise, the current solution is that we hide the WP admin bar when used with BuddyPress.
@ddgdaily, download the theme again from the original website.
Get the Archive.php or the original file where it is causing you problems.
Copy and Paste the original code into your current file so everything is back to normal
Probably, if John has time to do it.
I pretty sure 1.3 will use the WP menu
@chouxpastry2002
I don’t think this is a plugin issue. I have every plugin disabled except Buddypress, and I’m still having this issue. I’m going to replace the BP-default theme folder with an older version, and see what happens.
