I'm getting this error when I try to save new category. However, the category is created after I refresh listing. Any ideas?
Call to undefined method Joomla\CMS\Application\AdministratorApplication::getParams()
Joomla version 3.8.1 PhP 7.0 All extensions are up-to-date and I disabled any that are not specifically joomla 3.8 compliant Also running civicrm 4.7.25
This problem is very common now - and it is usually caused by a manual update of the Joomla website, which typically results in a libraries folder that is not compatible with the current Joomla website. A quick resolution to this problem is to rename your libraries folder and then recopy a libraries folder from a Joomla 3.8.1 install. See here.
If that doesn't help, then try recoyping the administrator/components/com_content folder to your Joomla website (from Joomla 3.8.1) after renaming the old com_content folder.
Take these simple steps ...
Global Check-in... /administrator/index.php?option=com_checkin
Clean cache... /administrator/index.php?option=com_cache
Clean expired cache... /administrator/index.php?option=com_cache&view=purge
and then...
Fix database... /administrator/index.php?option=com_installer&view=database
Finally, try again.
