[support] FieldInfo not added to class registry when updating to Drupal 7.22

[Linda Romey]

I would be grateful for any insight in how to solve this issue:

When upgrading to Drupal 7.22 I get a Fatal error: Class 'FieldInfo' not
found in /mnt/www/html/moh2011test/docroot/modules/field/field.info.inc on
line 28

After many hours of trying to understand the message, I found a great post
http://drupal.org/project/registry_rebuild that suggests this exact error
is caused by a corrupted registry. I followed the instructions, added the
registry_rebuild.php and ran it and got now error messages.

Reinstalled 7.22 (I had gone back to 7.21) and still got the error.

The upgrade worked fine on my local copy of my sites but not on the live
versions. So I compared the registry tables in the database and saw that
FieldInfo was on the local site but not live so I added it manually. Then I
got this error message: Fatal error: require_once() [function.require]:
Failed opening required
'/mnt/www/html/osb2011dev/docroot/modules/field/field.info.class.inc'
(include_path='.:/var/www/html/osb2011dev/library/:/usr/share/php:/usr/share/pear')
in /mnt/www/html/osb2011dev/docroot/includes/bootstrap.inc on line 3102

Understanding what this means is just beyond me.

I compared all enabled and disabled modules on the local and live sites,
set them the same and tried again. Still got the error.


I just don't know where to look. I'm not a coder so I don't really know
what's going on behind the scenes and would appreciate any hints as to
where I could look to find the solution to this problem. Thanks so very
much.
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