BuddyPress

During the upgrade everything was fine, but I can not run the Wizard.

I noticed that the paths in the wizard links are without the “/network/” which ends up directing me to an error page.

How solve this issue?

I use Wordpress 3.2.1 configured to mulstisite.

Is there anything special about your setup? Did your WP installation used to be WPMU? Do you have the following in any of your config files:
define( 'BP_ENABLE_MULTIBLOG', true );
?

Yes,

My WP are configured to be WPMU.

Yes, I have this code in my wp-config:

define ( 'BP_ENABLE_MULTIBLOG', true );

Why do you have BP_ENABLE_MULTIBLOG enabled? Do you really need it? (You only need it if you are going to be using a BP theme, with groups, members, etc, on more than one blog on the network.) If you comment that line out, I bet your wizard will start working.

That said, the fact that it doesn’t work for BP_ENABLE_MULTIBLOG could be a bug. I’ve opened a ticket so it can be checked out. http://buddypress.trac.wordpress.org/ticket/3600

I was able to update 1.5 from 1.2.10 on my multisite (3.2.1) install. I didn’t face any errors during the wizard aside from a conflict with non BP related plugin. My site also has BP_ENABLE_MULTIBLOG set to true on wp-config.php since before the update.

Thanks Boone Gorges!

A comment the line about enable multiblog and the wizard runs well. I really need the Multiblog feature in my website and I will uncomment the line after. I have problems to make BP-compatibility runs, but now they are solved.