Fatal error: Uncaught Error: Class 'TYPO3\CMS\Extbase\Configuration\ConfigurationManager' not found in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/extension_builder/Classes/Configuration/ExtensionBuilderConfigurationManager.php:32
Stack trace:
#0 {main}
  thrown in /home/.sites/884/site2951/web/test/luger/typo3conf/ext/extension_builder/Classes/Configuration/ExtensionBuilderConfigurationManager.php on line 32