Mandatory information about my setup:
Have I read the related troubleshooter articles above before posting (which pages?)? yes
Have I searched the tickets before posting? yes
Have I read the documentation before posting (which pages?)? yes
Joomla! version: (unknown)
PHP version: (unknown)
MySQL version: (unknown)
Host: (optional, but it helps us help you)
Admin Tools version: (unknown)
Description of my issue:
I just did an upgrade to Joomla 2.5.9 from 2.5.8 via the AdminTools core update tool. I got the following error three times:
"Refresh Manifest Cache failed: Extension is not currently installed."
Can you tell me what this means and if it is a real problem?