Reply To: HTTP error when uploading BuddyPress avatar profile photo
GD module and/or imagick modules are essential for WP operation in manipulating images re-sizing etc so if you had tested the media library you might have spotted issues with uploading and dealing with images, ( I believe that GD is a core module in later php versions so doesn’t need installing separately so may be worth checking PHP version)
It’s always wise to establish that WP works fully before enabling testing BP. BP is simply a plugin running under WP as such it will use WP core functionality and in turn follow the server requirements that WP needs.
There is no BP server requirements codex entry as such for the reasons above we do though very briefly note some requirements here:
Not sure if you saw that?
Server requirements are really a WP aspect, We could re-iterate the WP requirements in a little more detail or perhaps link through to the WP codex though.