Upgrade fails

[Fede Marsell]

Hi,

I'm upgrading a 8.2.0 server to 8.2.1, but autoinstaller fails with this error:

file /usr/lib/courier-imap/authlib/authpsa conflicts between attempted installs of psa-courier-imap-add-8.2.1-rhel4.build82070919.15 and psa-mail-pc-driver-1.0.0-rhel4.build90090127.18

I have upgraded 9 servers without any problem, but I can't upgrade this one. Only one different betwen this one and the others, this server have installed RedHat Enterprisse 4, and the others have CentOS.

I'm looking for this problem in forums with no result, so I don't know how resolve it.

I tried to upgrade to 8.4.0 and 8.6.0 with the same error (exactly).

Thanks,