warning message

What version of PHP are you using?

I got the same error. Using PHP 5.2.0

What javascripts are loaded into that page? Have you removed jquery.js/drupal.js from the misc directory?

That was the problem. This was a new install and I hadn't updated jquery.js in the misc directory. Thanks for pointing it out.

Wait, you shouldn't replace any core files with the Drupal 6 version of jQuery Update. It replaces the files for you.

I have the same warning message.

I changed from Packed to Minified, as the jQuery compression type, ten minutes before having that error message.

If you are using Drupal 6.4 and jQuery Update with the setting on packed (default) the section of code throwing the error won't run so you won't get the error.

I changed the settings again to Packed compression type and I don't have the error.
Maybe the error is there, at compression type section.

Regards
Hernán

Can you provide a list of modules you have installed? Do you have an example page with the error you can link to?

Yes, of course. I have the last releases of the following modules:

CCK Modules:
Content, Computed Fields, Content Copy, Content Permisions, Content Templates, Email, FieldGroup, FlexiField, Link, Number, Option Widgets, Text.

Core:
Book, Color, Comment, Database Logging, Help, Locale, Menu, Taxonomy, Trigger, Update Status.

Groups:
Organic Groups, OG Access Control, OG Actions, OG Views Integration, OG Subgroups

Others:
Backup and Migrate, Job Queue, Role Delegation, Token, Token Actions

User Interface:
JQuery Update (Of Course)

Views:
Views, Views UI

I have this warning message frequently when I navigate at groups pages. Often, I have the error messages, sometimes not, at the same pages.

For example: I select "MiGrupo" (parent group) (http://localhost/drupal6/node/1), after that I select "Grupo Hijo" (a son group of MiGrupo) (http://localhost/drupal6/node/2). In that page appears the warning message.
If I come back to "MiGrupo" the warning message persists, and sometimes the message appears at MyAccount page too.

It happens if I use Minified or None Compresion. I don't have the error if I use Packed Compression.
I attached a screen capture.

Saludos,
Hernán

When you select packed compression it isn't going to replace the core files so you won't get the error message. Right now, Drupal 6 and jQuery Update are using the same version of jQuery. jQuery update is smart enough to not replace the core files if they are up to date.

Are you manually adding anything to $scripts/$variables['scripts'] in your theme? Does this happen in garland?

I wonder if a module is manually adding content to the scripts variable outside of using drupal_get_js().

Did you ever solve this?

In the function og_preprocess_page data is added to the $scripts variable without drupal_add_js being called. This creates a situation where, in jquery_update, there is data in the scripts variable but nothing was ever added via drupal_add_js so jquery.js isn't there to replace. This causes the error we are seeing. It's an incompatibility/bug when working with the OG module.

I submitted a patch against OG to handle their half of this issue at #324484: jQuery.extent called on pages jQuery is not included on. On the jQuery Update side we should test to make sure jquery.js is present before we try to replace it. This could crop up with other modules.

@jcruz there was an update committed to OG that should fix your particular problem.

This was an error in OG that has since been fixed.