Error on Install: "Call to undefined method Doctrine\DBAL\Statement::fetchAll()"

[fmp-martins]

I've followed the documentation to install Kimai2 on an Ubuntu 21.10 server using PHP 8.0 and MySQL 8.0.
I don't think I'm doing anything wrong, but when executing bin/console kimai:install -n -v I get:

Output

Kimai installation running ...
==============================

Database `kimai2` for connection named default already exists. Skipped.
[notice] Migrating up to DoctrineMigrations\Version20210802174320
[info] ++ migrating DoctrineMigrations\Version20200205115244 (Migrates the data from entity tables to user specific rate tables)
[error] Migration DoctrineMigrations\Version20200205115244 failed during Execution. Error: "Call to undefined method Doctrine\DBAL\Statement::fetchAll()"
16:03:25 CRITICAL  [console] Error thrown while running command "kimai:install -n -v". Message: "Call to undefined method Doctrine\DBAL\Statement::fetchAll()" ["exception" => Error { …},"command" => "kimai:install -n -v","message" => "Call to undefined method Doctrine\DBAL\Statement::fetchAll()"]

In Version20200205115244.php line 47:
                                                                                              
  [Symfony\Component\ErrorHandler\Error\UndefinedMethodError]                                 
  Attempted to call an undefined method named "fetchAll" of class "Doctrine\DBAL\Statement".  
                                                                                              

Exception trace:
  at /var/www/kimai2/src/Migrations/Version20200205115244.php:47
 DoctrineMigrations\Version20200205115244->up() at /var/www/kimai2/vendor/doctrine/migrations/lib/Doctrine/Migrations/Version/DbalExecutor.php:167
 Doctrine\Migrations\Version\DbalExecutor->executeMigration() at /var/www/kimai2/vendor/doctrine/migrations/lib/Doctrine/Migrations/Version/DbalExecutor.php:102
 Doctrine\Migrations\Version\DbalExecutor->execute() at /var/www/kimai2/vendor/doctrine/migrations/lib/Doctrine/Migrations/DbalMigrator.php:112
 Doctrine\Migrations\DbalMigrator->executePlan() at /var/www/kimai2/vendor/doctrine/migrations/lib/Doctrine/Migrations/DbalMigrator.php:76
 Doctrine\Migrations\DbalMigrator->executeMigrations() at /var/www/kimai2/vendor/doctrine/migrations/lib/Doctrine/Migrations/DbalMigrator.php:162
 Doctrine\Migrations\DbalMigrator->migrate() at /var/www/kimai2/vendor/doctrine/migrations/lib/Doctrine/Migrations/Tools/Console/Command/MigrateCommand.php:210
 Doctrine\Migrations\Tools\Console\Command\MigrateCommand->execute() at /var/www/kimai2/vendor/symfony/console/Command/Command.php:255
 Symfony\Component\Console\Command\Command->run() at /var/www/kimai2/src/Command/InstallCommand.php:144
 App\Command\InstallCommand->importMigrations() at /var/www/kimai2/src/Command/InstallCommand.php:95
 App\Command\InstallCommand->execute() at /var/www/kimai2/vendor/symfony/console/Command/Command.php:255
 Symfony\Component\Console\Command\Command->run() at /var/www/kimai2/vendor/symfony/console/Application.php:1027
 Symfony\Component\Console\Application->doRunCommand() at /var/www/kimai2/vendor/symfony/framework-bundle/Console/Application.php:97
 Symfony\Bundle\FrameworkBundle\Console\Application->doRunCommand() at /var/www/kimai2/vendor/symfony/console/Application.php:273
 Symfony\Component\Console\Application->doRun() at /var/www/kimai2/vendor/symfony/framework-bundle/Console/Application.php:83
 Symfony\Bundle\FrameworkBundle\Console\Application->doRun() at /var/www/kimai2/vendor/symfony/console/Application.php:149
 Symfony\Component\Console\Application->run() at /var/www/kimai2/bin/console:29

Additional context

• Kimai version: 1.15.5
• PHP version: 8.0.8
• MySQL version: 8.0.27
• OS version: Ubuntu server 21.10