[rt-users] Can't locate object method "Columns" via package "RT::Attachments"

[pdh at bestpractical.com]

Matthias Juchem wrote:
> error:   	Can't locate object method "Columns" via package "RT::Attachments" 
> at /usr/local/rt3/share/html/Ticket/Elements/FindAttachments line 14.
> 
> I am using RT 3.0.10 with DBIx::SearchBuilder 0.99 and most Perl modules up to
> date;
> I have restarted Apache; cleared the Mason cache and restarted Apache; cleared
> the Mason cache and rebooted the machine - nothing.

That error really does mean that your DBIx::SB is too old. Are you
sure there's not an older version kicking around the machine somewhere
that mod_perl is finding it? (This might be caused by a perl upgrade
being done without a corresponding mod_perl upgrade...)