Error during installation – "HTTP 200 - parsererror" at "Create file parameters" step

[ipiliavskyi]

Hi everyone,

I'm trying to install PrestaShop on my local machine using Laragon. During the installation process (step "Store information"), I get the following error at the "Create file parameters" step:

An error occurred during installation... You can use the links on the left column to go back to the previous steps, or restart the installation process by clicking here. 1: HTTP 200 - parsererror -

My environment:

OS: Windows 10

Local server: Laragon

PHP: 8.1.10

MySQL: 8.0

PrestaShop version: 9.0

What I’ve tried:

Verified file permissions

Checked browser developer tools – the response to the AJAX request is not valid JSON (seems like HTML)

Ensured display_errors = Off in php.ini

Apache and PHP error logs show no fatal errors

Does anyone know how to fix or debug this issue? Any help would be greatly appreciated.

Thanks!