Many errors right after the installation
raphaeltsr - April 11, 2008 - 16:08
Hello!
I've installed drupal on my next website just as I've always done. But this one I'm getting a huge error list http://www.infoclimax.com.br
Would that be a problem with corrupted files?
Thanks!
PS: I've tried using both mysql and mysqli options.

Maybe the anonymous user is missing?
Maybe the anonymous user is missing? Or never created by the installation script?
Check your users table in the database and if there is no user with uid=0 try this solution:
http://drupal.org/node/111668#comment-192432
The anonymous user row was
The anonymous user row was correctly created during installation. But anyway I did empty the users table and re-inserted the user with uid = 0 and the problem stands! :(
Any other possible solution?
There are several dozens of
There are several dozens of similar error reports some of which people solved in different ways, but the most "official" one seems to be this issue:
http://drupal.org/node/165642
Patches #23 and #29 have been applied to 5.x-dev in last February, but not to 5.7 which you are using (because it was already released in January).
If your site is an upgrade from a previous Drupal version, also make sure that you are not using a settings.php file from the old version.