Error in admin_menu_merge_tree() when 'edit vocabulary' page in a menu-tree

I'm experiencing this also

I get this whenever I save any kind of configuration change.

subscribing. it's a PITA

subscribing

I got the same: arning: Invalid argument supplied for foreach() in admin_menu_merge_tree() (line 210 of /home/content/67/3783067/html/refuge/sites/all/modules/admin_menu/admin_menu.inc).

after logging in as administrator. I also get the following from admin_menu/admin_menu.inc when I try to go to user preferences.

Fatal error: Unsupported operand types in /home/content/67/3783067/html/refuge/modules/user/user.admin.inc on line 696

This prevents me from going into the user preferences and this time its a site issue that will prevent me from showing content. This is a normal priority? I'm surprised no one else has brought this up?

Help?

This is painful, just hoping it will get assigned to someone. It happens so often when logged in as an Administrator. For example:

Cron ran successfully.
Error message

Warning: Invalid argument supplied for foreach() in admin_menu_merge_tree() (line 210 of drupal/sites/all/modules/admin_menu/admin_menu.inc).

I am on Administration menu 7.x-3.0-rc1, with Drupal core 7.8

As a work around I went to admin/config/development/logging and turned off all warnings and errors.

im getting the same thing - any update on this

to clarify what i've done to get this:
created a new menu under administration called "add content" and placed links to add different content types there rather than have them in the default place. This was done as these links are missing in the d7 version (they were helpfully there in the d6 version)

This error message started appearing after adding a new content type recently (though they didn't appear previously when adding a new content type). It will reappear when clearing the cache and sometimes when logging back in after a time.

In case anyone else is having this problem please post if you have a similar set of modules to me as this may help narrow down a conflict somewhere:
using: admin_menu-7.x-3.0-rc1.tar.gz

Address Field 7.x-1.0-beta2
Automatic Nodetitles 7.x-1.0
Backup and Migrate 7.x-2.2
Calendar 7.x-3.x-dev (2011-Nov-19)
Chaos tool suite (ctools) 7.x-1.x-dev (2011-Dec-10)
Commerce (Product Display Manager) 7.x-1.0-alpha3
Commerce Bulk Product Creation 7.x-1.0-rc4
Commerce Email 7.x-1.x-dev (2011-Dec-18)
Commerce Invoice 7.x-1.x-dev (2011-Dec-17)
Commerce PayPal 7.x-1.x-dev (2011-Nov-11)
Commerce Product Attributes 7.x-1.0-beta3
Commerce Repair 7.x-1.x-dev (2011-Sep-09)
Commerce VBO Views 7.x-1.1
Custom breadcrumbs 7.x-1.0-alpha1
Date 7.x-2.x-dev (2011-Dec-21)
Drupal Commerce 7.x-1.1
Entity API 7.x-1.0-rc1
Field collection 7.x-1.x-dev (2011-Dec-16)
IMCE 7.x-1.5
IMCE Wysiwyg bridge 7.x-1.0
Mollom 7.x-1.1
Panels 7.x-3.x-dev (2011-Dec-07)
Pathauto 7.x-1.0
References 7.x-2.x-dev (2011-Dec-17)
Rules 7.x-2.0
String Overrides 7.x-1.8
Token 7.x-1.0-beta7
Views 7.x-3.0
Views Bulk Operations (VBO) 7.x-3.0-beta3
Wysiwyg 7.x-2.1

Every time cron would run as mentioned in #8 I would get the following error in Drupal:
Warning: Invalid argument supplied for foreach() in admin_menu_merge_tree() (line 210...

As a work around I went to admin/config/development/logging and turned off all warnings and errors, but it was still filling up my logs. So I researched this php error and found a fix. I edited the file admin_menu.inc and changed from this:

          foreach ($load_functions as $index => $function) {
            if ($function) {
              if (is_array($function)) {
                list($function,) = each($function);
              }
              // Add the loader function name minus "_load".
              $placeholder = '%' . substr($function, 0, -5);
              $path_args[$index] = $placeholder;
            }
          }

to this

       if(is_array($load_functions)){
          foreach ($load_functions as $index => $function) {
            if ($function) {
              if (is_array($function)) {
                list($function,) = each($function);
              }
              // Add the loader function name minus "_load".
              $placeholder = '%' . substr($function, 0, -5);
              $path_args[$index] = $placeholder;
            }
          }
       }

The extra check makes sure there is an array before doing the foreach() call.

It works great now. If I knew how to turn this into a patch I would, if someone else does it would be great!

Thank-you stompersly, I tried to ignore the messages, but just kept annoying me. The code change worked excellent!

Hi @stompersly. I've created the patch from your work which seems to be working for me too.

You can read about how to create a patch here.
http://drupal.org/node/707484

You can read more about getting the admin_menu source via git here.
http://drupal.org/project/admin_menu/git-instructions

I patched against the D7 version (7.x) which is probably a Bad Idea. So my git clone command was
git clone --branch 7.x-3.x http://git.drupal.org/project/admin_menu.git

then I made your changes and
git diff > admin_menu-invalid-arg-admin_menu_merge_tree-1030856-13.patch

Committed and pushed to 7.x-3.x and 8.x-3.x.

Any ideas what I did wrong that caused the patch to fail?

That particular error was a testbot failure, not related to your patch.

But that said, the admin_menu tests are not functional and known to be broken currently, so at least for this time, don't worry :)