Error in upgrade J3 to J4 (issue with t3 framework)

warpt22

Good afternoon,

I want to upgrade joombla 3.10.11 to 4.2.8, but when I do the upgrade process I get 2 exceptions and 2 stacktraces associated with the t3 framework:

exceptions (2)

Symfony\Component\ErrorHandler\Error\
UndefinedMethodError
in /opt/htdoc/plugins/system/t3/includes/core/t3.php (line 286)

Error
Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()

stack traces (2)

[1/2] Error

Error:
Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()

[2/2] UndefinedMethodError

Symfony\Component\ErrorHandler\Error\UndefinedMethodError:
Attempted to call an undefined method named "isAdmin" of class "Joomla\CMS\Application\AdministratorApplication".

Considering that J3 support will end soon, I plan to upgrade.
What action do you suggest to accomplish this upgrade?

saguaros

warpt22 Hi

T3 framework is ready for both J3 and J4, make sure that you're using latest version of T3 plugin: https://www.joomlart.com/member/downloads/joomlart/t3-framework/t3-blank