Summary of the problem Server not starting with default settings.bat Pack Version 1.8.0 What is the bug? The settings.bat supplied in the server files zip-package for Revelation 1.8.0 is missing the MIN_RAM and PERMGEN_SIZE settings. The MIN_RAM setting is required for the server to start, the PERMGEN_SIZE setting is not but I don't know the implications of that command line argument being incorrect. Mod & Version N/A Link to log file Is it repeatable? Yes, just unpack the server files as downloaded from https://www.feed-the-beast.com/projects/ftb-revelation/files/2545327/download and run ServerStart.bat, it will proceed to install some prerequisites then fail to start due to a missing setting. Known Fix Add the MIN_RAM setting in settings.bat, but the PERMGEN_SIZE setting should probably also be added.