Update Joomla 3 to Joomla 4

itc

Hello,

I have a Joomla 3 Site on which the MegaFilter is installed. In order to update the site to Joomla 4 do I have to uninstall the MegaFilter component and the modules and plugins first, make the update to Joomla 4 and then reinstall the MegaFilter version that is compatible to Joomla 4 or I can do the update to Joomla 4 without uninstalling MegaFilter and perform the update of MegaFilter after?

Ninja

itc
Hi
Mega filter already support Joomla 4.
Kindly all extension are ready for Joomla 4, those which are not ready should be disabled to removed.
Here is guide help you : https://www.joomlart.com/blog/joomla-templates/how-to-migrate-joomla-3-to-joomla-4-step-by-step-tutorial
https://docs.joomla.org/Joomla_3.x_to_4.x_Step_by_Step_Migration

itc

Hello,

I updated my test site to Joomla 4. Now I am facing the issue that I receive the error "jquery::ui not found." when I want to load a filter. Same in the backend when I try to re-index manually.

itc

After updating the component again the error disappeared and the site seems to work. But when I try to index in backend I now receive "0 The image file does not exist." The same error appears when I want to save changes to a filter. Also none of the filtered results is accessible when try to open their details. I receive a 404 error.

Ninja

itc
Hi
Kindly edit fields in first post and submit a temp super user login and FTP details for staff.
If possible share screenshot of the error page.