upgrade:tests references nonexistent class

[lfolco]

Preconditions

1. Be on v4.2.1

Steps to reproduce

1. Run vendor/bin/mftf upgrade:tests

Expected result

Tests get upgrade

Actual result

Fatal error:

Fatal error: Uncaught Error: Class "Magento\FunctionalTestingFramework\StaticCheck\ActionGroupArgumentsCheck" not found in /Users/lfolco/Sites/myproject/vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/Upgrade/RemoveUnusedArguments.php:43
Stack trace:
#0 /Users/lfolco/Sites/myproject/vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/Console/UpgradeTestsCommand.php(60): Magento\FunctionalTestingFramework\Upgrade\RemoveUnusedArguments->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#1 /Users/lfolco/Sites/myproject/vendor/symfony/console/Command/Command.php(298): Magento\FunctionalTestingFramework\Console\UpgradeTestsCommand->execute(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#2 /Users/lfolco/Sites/myproject/vendor/symfony/console/Application.php(1040): Symfony\Component\Console\Command\Command->run(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#3 /Users/lfolco/Sites/myproject/vendor/symfony/console/Application.php(301): Symfony\Component\Console\Application->doRunCommand(Object(Magento\FunctionalTestingFramework\Console\UpgradeTestsCommand), Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#4 /Users/lfolco/Sites/myproject/vendor/symfony/console/Application.php(171): Symfony\Component\Console\Application->doRun(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))
#5 /Users/lfolco/Sites/myproject/vendor/magento/magento2-functional-testing-framework/bin/mftf(40): Symfony\Component\Console\Application->run()
#6 /Users/lfolco/Sites/myproject/vendor/bin/mftf(117): include('/Users/lfolco/S...')
#7 {main}
  thrown in /Users/lfolco/Sites/myproject/vendor/magento/magento2-functional-testing-framework/src/Magento/FunctionalTestingFramework/Upgrade/RemoveUnusedArguments.php on line 43

[m2-assistant]

Hi @lfolco. Thank you for your report.
To speed up processing of this issue, make sure that you provided sufficient information.
Add a comment to assign the issue: @magento I am working on this

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[nborgawkar]

Is there any update on this? Facing same issue while executing sudo vendor/bin/mftf build:project --upgrade command