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Joomla 4 upgrade

Asked by Samuel Desloges 5 years ago Last activity 5 years ago

Hello,

I have this error after upgrading to joomla 4!

Une erreur s'est produite
0 Call to undefined method Joomla\CMS\Application\AdministratorApplication::isAdmin()

The website is https://www.caplangues.sarl/luxembourg

24 replies

Muntasir Sakib Staff

Hello there,

Have you installed Joomla 4 already?

If yes, please roll back to 3.10 version or the previous ones for the time being.

Thanks!

Samuel Desloges Asked this

How to roll back to 3.10?

Samuel Desloges Asked this

Hi,

Joomla 4 being out, I think the best thing for our new site is to create it directly under joomla 4 + Helix Ultimate 2 (hoping it will be released soon).
Ideally, Joomshaper should offer a template under Helix Ultimate 2 for education (Modern Education for language school).
Our school is entering a new technological era and the joomla 4 + Joomshaper duo would be an excellent way to display/publish our changes.
Our new site should be up and running by early 2022 at the latest, but we hope to have it completed as soon as possible.
I'm hoping Joomshaper can help us bring this to fruition quickly with the latest technology to match our current changes.

Thanks in advance.

infini

I see in the article: https://www.joomshaper.com/blog/joomshaper-s-plans-for-joomla-4

"Helix Ultimate Framework will be compatible with Joomla 4 from the launch date. "

  • I don't believe this is true at the moment , Helix Ultimate Framework v1.1.4 broke my brand new Joomla 4 Install

Although I believe SP Page Builder v3.7.12 seemed to work on a new Joomla 4 Install, however did not seem to work from my previous Joomla 4 RC6, updated to Joomla 4 Stable

Just been my personal test results..

Toufiq Senior Staff

We need time to release update for Joomla 4 with other templates and extensions. Please stay with us and keey your eyes in our blog post. Thanks

Muntasir Sakib Staff

Hello Samuel,

I believe that your problem is already fixed. If not, feel free to give us a buzz again.

If yes, please close the post by accepting the most suitable answer so that others can find the solution as well.

Thanks!

Samuel Desloges Asked this

Hi Muntasir,

No, I have allways the problem.
You can see my website at https://caplangues.sarl/luxembourg, it doesn't work!
And I can't access to the admin panel of the website.

Thanks.
Sam

Toufiq Senior Staff

When occurred this problem? Thanks

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