Hoping somone could give me a few pointers on this. On a password-protected site (hence no link) we have a customised Amdin Bar. It was working fine until I upgraded to 3.6; but now, none of the drop-down menus appear in the front end. Back end, they appear as expected.
I took out the customisations, and the drop-downs (e.g. for '+ New') still don't work in the front end.
IE reports this error:
Message: Object doesn't support this property or method Line: 1 Char: 1159 Code: 0 URI: /wp-includes/js/admin-bar.min.js?ver=3.6\
I then thought I'd re-install 3.6 via the Updates option in Dashboard. When I start the proces running, I get the following message:
Fatal error: Cannot redeclare class Plugin_Upgrader in (...)/wp-admin/includes/class-wp-upgrader.php on line 640
So: I'm guessing the menu code is fine, but I had an issue with the upgrade. Anyone seen similar messages? All the other sites I manage are fine. Is my best option to do a manual overwrite of all the core files via FTP?