I've a fresh install of Magento 2.4.0 on ubuntu 20.04 installed from CLI, downloaded with Composer.

I get this error while trying to reindex the catalog\_search index :

> 
> Catalog Search index process unknown error:
> Missing required argument $engines of Magento\Search\Model\EngineResolver.
> 
> 
> 

Also, my catalog/catalog tab in admin panel is empty for the scope `default config` so I can't set the elasticsearch engine from the UI. In the core\_config\_data, there was no `catalog/search/engine`, so I tried to set a new one with `elasticsearch7` or `mysql` but neither worked.

I precise that I've a working elasticsearch 7.x on this new server, with no credentials.

It seems that the elasticsearch related config are not set properly, and I can't figure out why no option are visible in the default scope admin panel for the catalog/catalog tab...

An idea ?