Fatal error: Uncaught Error: Class 'TYPO3\CMS\Extbase\Validation\Validator\AbstractValidator' not found in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/extension_builder/Classes/Domain/Validator/ExtensionValidator.php:29
Stack trace:
#0 {main}
  thrown in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/extension_builder/Classes/Domain/Validator/ExtensionValidator.php on line 29