Windows .exe FTB Monster crashes upon creating world

Tristam Izumi

New Member
Jul 29, 2019
1,460
0
0
java.lang.RuntimeException: java.io.FileNotFoundException: C:\Users\Itay\Documents\FTB Launcher\Monster\minecraft\saves\FTB I'M BACK\chickenchunks\loginTimes.dat (The requested operation cannot be performed on a file with a user-mapped section open)
Add your FTB install folder to the exceptions for your antivirus. If you're unsure how to do this, Google "add exception to <antivirus name>".