[solved]Prestashop 1.7.6.2 - dropdowns not working

[CheeryReaper]

Hello!
I seem to have an issue with the general js functionality, things like dropdowns and buttons don't seem to work.
Dropdowns look like this

And nothing happens when I click on them, same goes if I want to save settings, everything reloads, but the settings stay the same.
Any help would be appreciated.

[selectshop.at]

Which php-version are you using ? And which Prestashop version ?

[CheeryReaper]

PHP version 7.4 and Prestashop 1.7.6.2.

[selectshop.at]

Prestashop 1.7.6.x does not work with php 7.3, nor with php 7.4. So definitely not a bug. Please use only one of the recommended php-version.

https://devdocs.prestashop.com/1.7/basics/installation/system-requirements/

[CheeryReaper]

I didn't know that. I've changed the version to 7.0 and everything works, thanks!

[selectshop.at]

Ok. So I can add "solved" to your question ?

[CheeryReaper]

Yes, go ahead.

[vani85]

Hi, i am also having the same problem, how to change the PHP version.

Any help is appreciated.

Thanks

Vani

[ruilong]

You may also change in the file

\src\PrestaShopBundle\Resources\views\Admin\TwigTemplateForm\form_div_layout.html.twig
find block widget_attributes

{%- block widget_attributes -%}
change
id="{{ id }}" name="{{ full_name }}"
to
{{- " " -}} id="{{ id }}" name="{{ full_name }}"
This will add a space before the id attribute and the selects will work on php 7.4