I have moved a drupal 9.5.9 from a staging server to another staging server. The site is working absolutely fine in the first staging server. But when I migrated the full website to the second server & run ./vendor/bin/drush cr to clear caches, it's showing that driver not specified.
I even tried to remove namespace & driver from database array but it couldn't work.
The database connection:
$databases['default']['default'] = array (
'database' => 'db_name',
'username' => 'db_user',
'password' => 'db_pass'
'prefix' => '',
'host' => 'localhost',
'port' => '3306',
'namespace' => 'Drupal\\Core\\Database\\Driver\\mysql',
'driver' => 'mysql',
);
The error we got:
