You are running Upgrade checkinstall and getting the error:
6/28/18 3:58 PM (Echo) script name = check-lang-locale-setting.xml 6/28/18 3:58 PM (Echo) check.result = ERROR 6/28/18 3:58 PM (Target) Target "_output-log-info" started. 6/28/18 3:58 PM (Target) Target "_output-log-info" finished.
No explicit error in the install.log
Release: Any
Component: