How to fix ? Symfony\Component\Debug\Exception\FatalErrorException Declaration of Doctrine\DBAL\Driver\PDOConnection::query() must be compatible with PDO::query(string $query, ?int $fetchMode = null, mixed …$fetchModeArgs)

How to fix ?

Symfony\Component\Debug\Exception\FatalErrorExceptionDeclaration of Doctrine\DBAL\Driver\PDOConnection::query() must be compatible with PDO::query(string $query, ?int $fetchMode = null, mixed …$fetchModeArgs)

#1 – I removed from composer.json the following line

"doctrine/dbal": "^2.10",

#2 – Run composer upgrade

#3 – Run composer upgrade

Voila Job Done !