You are upgrading your SEPM and see the following error:
Error 2318 file does not exist..... \tomcat\logs\TCP accept-0-0.log.lck
SEP 14.3 RU9
SEP 14.3 RU10
The installer gets an inventory of the log directory. The file, is a temporary file that goes away when SEPM is stopped, or the log file is no longer in use. The msi got the directory listing while the lock file existed, then it was removed, so the msi could no longer access it
The following are individual steps have been used to resolve this issue:
Also, if UAC is turned up high on the server make sure you run the upgrade program as administrator.