Some of you might be having this error showing up… I got this error when updating extensions with Extension Manager, but you could experience the same error under different conditions. If you use a Plesk enabled hosting provider or you ARE a hosting provider and Parallels partner like me, heres the fix 🙂
This error shows up because of the way Plesk manages security for all Vhosts, so the way to fix this, is to create a specific vhost.conf file for the site that has Joomla and Extensions Manager enabled.
Open your vhost.conf file or create one if you dont already have one.
/var/www/vhosts/your.domain/httpdocs
… and insert the following code…
<Directory /var/www/vhosts/your.domain/httpdocs>
<IfModule sapi_apache2.c>
php_admin_flag engine on
php_admin_flag safe_mode off
php_admin_value open_basedir "/var/www/vhosts/your.domain/httpdocs:.:/php:/tmp"
</IfModule>
<IfModule mod_php5.c>
php_admin_flag engine on
php_admin_flag safe_mode off
php_admin_value open_basedir "/var/www/vhosts/your.domain/httpdocs:.:/php:/tmp"
</IfModule>
</Directory>
Reconfigure the domain using the httpdmng command… restart the httpd service and thats it! Problem fixed. 🙂
Hope it helps.
Peace,
Gabriel