[wp-testers] Undefined method wpdb::get_blog_prefix() After WP 3 Upgrade

[Dion Hulse (dd32)]

Check to see if you're using wp-content/db.php, That file needs to be  
updated to support the new 3.0 methods.

I've been told that file is created by some caching plugins.

On Fri, 18 Jun 2010 21:16:28 +1000, Paul Robinson  
<pablorobinson at gmail.com> wrote:

> Hi,
>
> I realize this probably isn't one for wp-testers, but as WP3 just came
> out maybe it is. I apologize if it isn't, but any help would be
> greatly appreciated.
>
> I've just upgraded to WP 3 & everything seems fine until I try got to
> either the core upgrade page or to add a new post, all other pages
> seem to work fine. The pages that do error show this:
>
> Fatal error: Call to undefined method wpdb::get_blog_prefix() in
> ****/****/return-true.com/wp-includes/user.php on line 445
>
> I've manually reuploaded the files twice just to check, but it doesn't
> seem to be a problem with files not uploading correctly.
>
> Again any help would be appreciated & again I apologize if this isn't
> one for the testers list.
>
> P.S. I'm currently disabling plugins to see if that is a problem...
>
> Paul.