How to correct disappearing admin menu?

Question

I use the Admin Menu module for my projects. In my Drupal 7 and Pressflow 7 instances, it randomly shows only some menu items.

At first, I thought I could correct this by clearing menu cache. When I went to the front page, I once again got the corrupted menu.

How do I solve this error, permanently?

I found out this issue is reported in detail, but there is only a workaround (disable menu caching).

I disabled menu caching with drush vset admin_menu_cache_client 0 as a workaround. (I am still testing this issue with the menu cache enabled.)

I checked and eliminated JavaScript errors using Firebug browser extension.

I removed BOM from *.js files as suggested in this answer.

Answer 1

Modules > Administration Menu > Configure

In the Performance tab, untick Cache menu in client-side browser.

Save configuration.

Answer 2

Add this to the bottom of your settings.php file:

$conf['admin_menu_cache_client'] = FALSE;

Answer 3

There is an option for rebuilding, although it refreshes all the menus. If the user has the permission to access that menu, it will be shown.

Answer 4

I had issues with this, but it had to do with the mod_rewrite module in Apache's config file (httpd.conf). Make sure it's not commented out!

This:

LoadModule rewrite_module modules/mod_rewrite.so

Instead of this:

# LoadModule rewrite_module modules/mod_rewrite.so

As soon as I did that, my admin menu appeared again and it fixed another issue with my configuration changes not saving.

Answer 5

In your profile settings: uncheck the "Use the overlay for administrative pages." option under "Administrative overlay".