Fatal error installing Omeka-s 3.0.1

Omeka-s 3.0.1 was migrated (for development) from the Xampp version 7.4.9 Win to Xampp 8.0.0 Win environment. PhP changed from 7.4.9 to 8.0.0 as well. Omeka-s gave no problems when being installed on the older version, now we are encountering the following error:

Fatal error: Declaration of Doctrine\DBAL\Driver\PDOConnection::query() must be compatible with PDO::query(string $query, ?int $fetchMode = null, mixed …$fetchModeArgs) in C:\xampp\htdocs\o-s-301\vendor\doctrine\dbal\lib\Doctrine\DBAL\Driver\PDOConnection.php on line 70

Obviously, Omeka hasn’t changed, so the problem most likely is due to Xampp. Supposedly there is no taste here for supporting this development env., but perhaps ‘Fatal error’ could be elucidated, bec. the author of this mail does not understand it.

cheers, Fred

Omeka S doesn’t currently support PHP 8, which is brand-new.

… ah, thanks for the info. We have reverted back to php 7.4.9 .