Prestashop theme "use" button disabled

[Tobias13]

Hi everyone, i recently made a fresh installation of prestashop 8.0 in xampp, i also bought a theme and imported it to prestashop, but for some reason the use button is disabled, any ideas of the problem?

[Nickz]

What does the errorlog say?

[Tobias13]

[Wed Aug 14 23:18:31.620692 2024] [php:error] [pid 10600:tid 1904] [client 127.0.0.1:62445] PHP Fatal error:  Uncaught ErrorException: Warning: Undefined property: Symfony\\Component\\VarDumper\\Caster\\CutStub::$cache_locking in C:\\xampp\\htdocs\\prestashop\\vendor\\smarty\\smarty\\libs\\sysplugins\\smarty_internal_template.php:736\nStack trace:\n#0 [internal function]: Smarty_Internal_Template->__destruct()\n#1 {main}\n  thrown in C:\\xampp\\htdocs\\prestashop\\vendor\\smarty\\smarty\\libs\\sysplugins\\smarty_internal_template.php on line 736, referer: http://localhost/prestashop/admin309aibkekcvgfqacxzc/index.php?controller=AdminDashboard&token=1812c1b3e35eb3397fab5239c637356d
[Wed Aug 14 23:18:34.158001 2024] [php:error] [pid 10600:tid 1876] [client 127.0.0.1:62454] script 'C:/xampp/htdocs/prestashop/admin309aibkekcvgfqacxzc/themes/new-theme/public/index.php' not found or unable to stat, referer: http://localhost/prestashop/admin309aibkekcvgfqacxzc/index.php/modules/improve/design/themes?_token=sDqVjJ6Olh9wq5QiH5QQ5knIwpoDXtQJPP8X_DUBvcU
 

Hi thank you for the fast reply i believe its this

[Nickz]

Could be:

https://github.com/PrestaShop/PrestaShop/issues/35155

Which php version do you use in xamp?

[Tobias13]

Im using php 8.0 on xampp, prestashop 8.0 aswell

I got a reply from prestashop support, they said to disable prestashop design module, ill try it out