I am trying to move my drupal 8.9.2 from one server to another. But after moving all files & folders & import the DB I got this error after running drush cr.
PHP Fatal error: Uncaught Error: Class 'Drupal\mysql\Driver\Database\mysql\Connection' not found in /var/www/html/core/lib/Drupal/Core/Database/Database.php:374
Stack trace:
#0 /var/www/html/core/lib/Drupal/Core/Database/Database.php(169): Drupal\Core\Database\Database::openConnection()
#1 [internal function]: Drupal\Core\Database\Database::getConnection()
#2 /var/www/html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(79): call_user_func_array()
#3 /var/www/html/core/lib/Drupal/Component/DependencyInjection/Container.php(173): Drupal\Component\DependencyInjection\PhpArrayContainer->createService()
#4 /var/www/html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(212): Drupal\Component\DependencyInjection\Container->get()
#5 /var/www/html/core/lib/Drupal/Component/DependencyInjection/PhpArrayContainer.php(62): Drupal\Component\DependencyInjection\PhpArrayContainer->resolveServicesAndParameters()
#6 in /var/www/html/core/lib/Drupal/Core/Database/Database.php on line 374Server Details: Apache: 2.4.57, PHP: 7.4.33, MySQL: 8.0.25
For me it was after moving all the files & folders & import the DB. The current server PHP version 7.4 & MySQL 8
I tried to comment out 'namespace' => 'Drupal\\mysql\\Driver\\Database\\mysql' in settings.php. But after this drush started working. But the site is still not opening.
The site should open without any fatal error.
The site is not opening, the error is
Error: Class "Drupal\Driver\Database\mysql\Connection" not found in Drupal\Core\Database\Database::openConnection() (line 463 of /var/www/html/core/lib/Drupal/Core/Database/Database.php)
Can Drupal 8.9.2 run on MySQL 8.0.25?
Closed: outdated
8.9 ⚰️
Drupal 8 is end of life and is unsupported here. This is a well-defined issue. I suggest searching.
There has been no further discussion here for four months and @cilefen has provided a way forward.
Since Drupal 8 is no longer supported, I am closing this issue.