Site Restoration

#35887 trying to create local host --undefined constant

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Environment Information

PHP version
CMS Type
CMS Version
Backup Tool Version
Kickstart version

Latest post by on Saturday, 30 October 2021 20:17 CDT


Trying to set up my local host so I can update to 3.10, and update my extensions without losing the website. Just updated to xampp 8.0.10 and reinstalled JDK.

Running on Windows 10.

Got this message after I tried to set the superuser password. Sigh.

Thank you!!!


Error — Undefined constant "MCRYPT_RIJNDAEL_128"


#0 C:\xampp-8010\htdocs\centennial\installation\platform\models\joomlasetup.php(474): FOFEncryptAes::isSupported()
#1 C:\xampp-8010\htdocs\centennial\installation\platform\models\joomlasetup.php(398): AngieModelJoomlaSetup->updateTFA('JJjutEuOxrxlzA8...', 'a1SL2OT5xptNLlU...')
#2 C:\xampp-8010\htdocs\centennial\installation\platform\models\joomlasetup.php(74): AngieModelJoomlaSetup->updateEncryptedData('JJjutEuOxrxlzA8...', 'a1SL2OT5xptNLlU...')
#3 C:\xampp-8010\htdocs\centennial\installation\angie\controllers\base\setup.php(23): AngieModelJoomlaSetup->applySettings()
#4 C:\xampp-8010\htdocs\centennial\installation\framework\controller\controller.php(510): AngieControllerBaseSetup->apply()
#5 C:\xampp-8010\htdocs\centennial\installation\framework\dispatcher\dispatcher.php(263): AController->execute('apply')
#6 C:\xampp-8010\htdocs\centennial\installation\framework\application\application.php(176): ADispatcher->dispatch()
#7 C:\xampp-8010\htdocs\centennial\installation\index.php(115): AApplication->dispatch()
#8 C:\xampp-8010\htdocs\centennial\installation\index.php(230): mainLoop()
#9 {main}

Akeeba Staff

Please use the latest version of Akeeba Backup to take a backup of your site. This is an issue caused by Joomla core code on PHP 8. I have reported this issue and proposed a solution in Joomla's GitHub. Unfortunately, it will only be included in Joomla 4.1 or 4.2. Meanwhile, we created a workaround in ANGIE, our restoration script.

If you cannot take a new backup then downgrade PHP on your local host to PHP 7.4. After the restoration is complete you can upgrade it back to PHP 8.

Nicholas K. Dionysopoulos

Lead Developer and Director

🇬🇷Greek: native 🇬🇧English: excellent 🇫🇷French: basic • 🕐 My time zone is Europe / Athens
Please keep in mind my timezone and cultural differences when reading my replies. Thank you!


Thank you! I was worried that it was something I did.


System Task
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