I'm getting "Class 'Tx_Extbase_Utility_Extension' not found" when installing
Vojta Svoboda reported an issue
TYPO3 8.7.10 on PHP 7.0.27.
Reported URL:https://extensions.typo3.org/extension/blog/
User Agent:Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/64.0.3282.186 Safari/537.36