Upgrading Drupal

Everytime I try to do my upgrades this is the error I get help what does this mean? I have site back up but restoring over and over is not fun and I don't know what to change to make this stop happening.

Fatal error: Class 'views_handler_sort' not found in modules/handlers/views_handler_sort_menu_hierarchy.inc on line 12

Thanks,

Laura

I upgraded from v6.10 to 6.11, nut now the site is totally not accessable any more. I copied my old site back, and even that does not seem to work.

How to proceed from here.....................

I edited the settings.php to "TRUE"

The Site is running on a Netgear NAS Duo

Please tell me if I don't understand this because I'm basically a Windows guy, or what.

I want to upgrade my Drupal 5.x installation with the latest code. I went to the Status page, which tells me that I'm running Drupal 5.3. However, this site says that the latest and greatest version (from April 29, 2009) is 5.17. Huh?

Hello, everybody!

Hopefully I can explain my problem without being too wordy, but anyway, we live in the dark ages and are still using Drupal 4.7.x!! We're in the process of upgrading to 6.x, with the in-between step of upgrading to 5.x first.

Anyway, I've done all the good stuff: installed new files, upgraded modules, etc. When I run the update.php script, everything seems to work fine. After updating, the status report tells me that the DB is still outdated. (Is this normal?) I update again, and things still appear to be in order.

Talk about strange!! I have never seen this happen.

I am trying to prepare two old D4 sites (built on one instance of D4) for upgrade to D6. I have created a mirror image of the site under a new domain on the same server. I copied the original database into a new database and directed the mirror site to the new database.

I have done an upgrade from 4.7 to 5.17 using xampp. The process appears to be fine as long as I am logged in to my administrator account. When I logout, I get the custom 404 text about pages not being available. Any suggestions as to what I have done wrong?