Upgrading Drupal

After upgrading to 7.17. I hava a peculliar problem. With some nodes (not all), when trying to edit them, I get WSOD. I read http://drupal.org/node/158043 and enabled error reporting. Clicking on edit I get: Fatal error: Call to a member function use_pager() on a non-object in /var/www/html/sites/all/modules/views/includes/view.inc on line 690

Please help

I've recently upgraded a site from a CCK-riddled D6 to D7. I'm pretty much up and running, but I need to migrate my file attachments (they're all in the database, but not appearing on any nodes). I tried the D7 module CCK/migrate module, but it just says "There is no D6 field information in this database.".

I just upgraded a site from 7.9 to 7.17 and everything is working as expected except I am getting errors on the User Edit page. Here is what I am getting:

Notice: Undefined index: 1 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).
Notice: Undefined index: 1 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).
Notice: Undefined index: 1 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).
Notice: Undefined index: 1 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).
Notice: Undefined index: 5 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).
Notice: Undefined index: 5 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).
Notice: Undefined index: 5 in block_form_user_profile_form_alter() (line 571 of /homepages/6/d106006861/htdocs/Clients/TheTestKing/drupal-7.17/modules/block/block.module).

how can i use drupal 6 category like module in drupal 7.as i am using this to make category hierarchy but in drupal 7 there is no category module and i can not achive this from taxonomy .
Thanks in advance.

Hi, I encoutered one exception when update my drupal site from 7.16 to 7.17, whatever I use drush or web page to update the database.
Do you know how to fix this issue?

THank you very much.

I just upgraded from 7.16 to 7.17. Things went well until I attempted to put the site back on line. Clicking "Go Online" directs me to < http://development.ldmartin1959.com/admin/config/development/maintenance > but the page isn't there. I get a 404 error.

What am I missing here?