I got the following error when I tried to start my Minecraft server:
16.09 20:06:02 [Server] INFO [20:06:02 WARN]: net.minecraft.server.v1_7_R4.ExceptionWorldConflict: Failed to check session lock for world located at ./..., aborting. Stop the server and delete the session.lock in this world to prevent further issues.
What does this error mean?
Best Answer
The
session.lock
file is a critical file needed in order to run a world. The error above means that thissession.lock
file can't be opened.The error message says:
But in many cases, this may not work. What worked for me was setting the permissions of the
session.lock
file to777
. You must have SSH access to your server (otherwise you should contact your host). Run:Make sure that you're in the world which contains the
session.lock
file the server has issues with.This should make Minecraft be able to write and read the file.
If it still doesn't work, try running:
Replace
[world]
with the name of the world you're having issues with.