PDOException SQLSTATE[42S02]:Base table or view not found after upgrade to 4.5.2

[atly]

After a recent update to CiviCRM 4.5.2 we are getting the following error whenever we try to log in:

PDOException: SQLSTATE[42S02]: Base table or view not found: 1146 Table 'xxxx_xxxx.civicrm_group' doesn't exist: SELECT cgr.group_id AS group_id FROM {civicrm_group_roles_rules} cgr INNER JOIN {civicrm_group} cg ON cg.id = cgr.group_id WHERE (cgr.role_id = :db_condition_placeholder_0) AND (cg.saved_search_id IS NULL ) ; Array ( [:db_condition_placeholder_0] => 4 ) in civicrm_group_roles_add_remove_groups() (line 664 of /home/xxxx/public_html/sites/all/modules/civicrm/drupal/modules/civicrm_group_roles/civicrm_group_roles.module).

I am also unable to change user permissions and my new users seem to be getting the same problem when trying to reset their passwords.

Our CiviCRM and Drupal share the same database. The common answer I seem to get from googling the problem is that it's a database referencing issue. Unfortunately, I'm not exactly sure if my current problem is actually a database referencing issue and I hope someone can help me?

Thanks.

[Michael McAndrew]

Can you check if the table xxxx_xxxx.civicrm_group actually exists in your DB.  If not, something went wrong during the upgrade and you should probably attempt  the upgrade again using a backup database from before the upgrade.

[davej]

See also http://forum.civicrm.org/index.php/topic,34830.0.html .