Attempt to remove the entity/player’s inventory to prevent the crash. Every time this player joins or the area is loaded, the server will crash. The easiest to notice is “: n must be positive”, which is caused by an entity or player which has an item/piece of armour that has a negative enchantment on it. Found in both the server.log and Minecraft crash files.įix is to delete the session.lock files within your world folders while the server is down and start it again.ĭue to the unlimited power of creative mode, using hacked clients players are able to spawn in items that can crash your server. \world\session.lock (The requested operation cannot be performed on a file with a user-mapped section open)”. “: Failed to check session lock, aborting”, “java.io.FileNotFoundException. These are known bugs without a fix at the moment.Ĭaused by either corruption, deletion or forced change to the session.lock file, or world files, while the server is running. These are " : n must be positive " and “: Already decorating!!”. Usually notates Section, BlockLight or Blocks in the server details after initial error.Ĭurrently, there are two generation bugs within Minecraft as of 1.7. Easiest to find in the default Minecraft server crash files. usually consists of an error being repeated several times over.īegins with several different errors eg “java.io.UTFDataFormatException: malformed input around byte 111”,”java.io.EOFException: Unexpected end of ZLIB input stream”.
These are usually notated by “” at the beginning of the error, most easily identified by the Minecraft default crash files.