ERROR: Referenced sniff "PHPCompatibility.PHP.RemovedExtensions" does not exist is caused by changes in https://github.com/PHPCompatibility/PHPCompatibility **PHP.RemovedExtensions** is moved to **Extensions.RemovedExtensions** To fix it we should modify following line: https://github.com/Automattic/_s/blob/master/phpcs.xml.dist#L126
ERROR: Referenced sniff "PHPCompatibility.PHP.RemovedExtensions" does not exist
is caused by changes in https://github.com/PHPCompatibility/PHPCompatibility
PHP.RemovedExtensions is moved to Extensions.RemovedExtensions
To fix it we should modify following line:
https://github.com/Automattic/_s/blob/master/phpcs.xml.dist#L126