Backend And Frontend No Longer Accessible After Joomla Update - Question | JoomShaper
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Backend And Frontend No Longer Accessible After Joomla Update

PL

Patrick Ladner

General 3 years ago

After updating Joomla, I can no longer log into the backend and the following message appears in the frontend:

Es ist ein Fehler aufgetreten.

0 Class "Joomla\Component\Scheduler\Administrator\Extension\SchedulerComponent" not found 

Can you help me?

Thank you very much.

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14 Answers
Paul Frankowski
Paul Frankowski
Accepted Answer
Senior Staff 3 years ago #69976

About Joomla you have ask / check on forum.joomla.org.

You're welcome.

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PL
Patrick Ladner
Accepted Answer
3 years ago #69915

I took a step back. You can now log in to the backend. Now only the frontend editor does not work yet.

Not Found The requested document was not found on this server.

Web Server at greenchili.ch

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PL
Patrick Ladner
Accepted Answer
3 years ago #69923

Now everything is working. The .htaccess was broken.

What do you think? Can I update to Joomla 4.1.14 without problems?

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Mehtaz Afsana Borsha
Mehtaz Afsana Borsha
Accepted Answer
Support Agent 3 years ago #69932

Hi,

Thanks for contacting us. Glad to know that it is working now. Yes you can upgrade to Joomla 4.1.14. But please make sure you have Backup. You can now close this post by accepting the answer.

-Regards.

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PL
Patrick Ladner
Accepted Answer
3 years ago #69947

An error message appeared after the update. But everything seems to be working? What do you think?

https://prnt.sc/fr4QLtY-pvX4

The post-installation instructions did not respond either. I cannot delete them. Do you have a tip?

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Paul Frankowski
Paul Frankowski
Accepted Answer
Senior Staff 3 years ago #69951

If I may...

I logged and all seems to be OK.

But you have to fix that

Warning The PHP temporary folder is not set.

ask hosting support about details.

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PL
Patrick Ladner
Accepted Answer
3 years ago #69953

Ok. Thank you very much for taking a look.

Do you know that? Is this a Joomla 4 problem with the post-installation instructions?

https://prnt.sc/OeOHhrHUn9DG

And I'll clarify that with the PHP.

Many thanks

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MT
Martin T.
Accepted Answer
3 years ago #73257

0 Class 'Joomla\Component\Scheduler\Administrator\Extension\SchedulerComponent' not found

I have the same problem. How would it be resolved?

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martin
martin
Accepted Answer
3 years ago #76652

i have installed the newsberg_quickstart_J4 as a test fresh. after that only joomla upd. then comes the Class 'Joomla\Component\Scheduler\Administrator\Extension\SchedulerComponent' not found .

does anyone have a tip? THANKS

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MT
Martin T.
Accepted Answer
3 years ago #76653

The class SchedulerComponent is declared in the file administrator/components/com_scheduler/src/Extension/SchedulerComponent.php, which may be missing. Extract the file from the installation package of Joomla 4.1.5 and copy it to the server.

If more files appear to be missing and you can go to System - Update - Joomla, download the Joomla 4.1.5 update package and run the update from the button 'Upload and Update'.

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martin
martin
Accepted Answer
3 years ago #76656

I have already tried with the copy, does not work. I do not come at all in the backend.

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MT
Martin T.
Accepted Answer
3 years ago #76657

Delete the file administrator/cache/autoload_psr4.php and start the backend again. if thisnot help, delete all files in the folder

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martin
martin
Accepted Answer
3 years ago #76658

super tip it works thank you very much

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MT
Martin T.
Accepted Answer
3 years ago #76659

gerne. Gute Nacht YouwelcomeGoodnight

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