See :issue:`83475`
The method TYPO3CMSExtbaseValidationValidatorResolver::buildMethodArgumentsValidatorConjunctions is deprecated and will be removed in TYPO3 v10.0
The method is not considered public api and it is unlikely that the methods is used in the wild. If you rely on that method, you will need to implement the logic yourself.
All installations that use that method.
There is no migration
.. index:: PHP-API, FullyScanned