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#39507 0 Class "Akeeba\Plugin\System\AdminTools\Extension\AdminTools" not found

Posted in ‘Admin Tools for Joomla! 4 & 5’
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Environment Information

Joomla! version
4.3.4
PHP version
8.0.30
Admin Tools version
7.4.1

Latest post by nicholas on Friday, 22 September 2023 00:51 CDT

enclavecoa

I'm trying to use another software product to basically copy my Live environment to a testing environment. This third party product is called StageIt. After the copy is finished and when I try to login to the test environment, I get a message that says:  "0 Class "Akeeba\Plugin\System\AdminTools\Extension\AdminTools" not found". Can you tell me why I'm getting this and how to resolve this error?

nicholas
Akeeba Staff
Manager

First, delete the file administrator/cache/autoload_psr4.php. This is a file created by Joomla which maps PHP namespaces to absolute filesystem paths. When it's missing, it is created afresh. I'm surprised that a tool ostensibly created to clone a site does not know about this; this has been the case since Joomla 4 alpha 2 released in November 2017 — six years ago. We've supported this in Akeeba Backup ever since.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
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