warningJava ErrorsAffects: All versions
How to Fix java.io.IOException: Stream Closed
Fix IOException Stream Closed in Minecraft by checking disk space, antivirus exclusions, and file permissions.
Quick Fix
Check disk space and disable antivirus real-time scanning for the Minecraft directory.
Error Message
java.io.IOException: Stream closedHow to Fix
1
Ensure you have enough free disk space (at least 2GB)
2
Add Minecraft folder to antivirus exclusions
3
Verify file permissions on the Minecraft directory
4
If world save is corrupted, restore from a backup
Common Causes
- File was closed before the operation completed
- World save interrupted by crash or force quit
- Disk full or write permission denied
- Antivirus blocking file access
Diagnostic Steps
- Check free disk space
- Add .minecraft to antivirus exclusions
- Try running Minecraft as administrator (Windows)
- If a world file is mentioned, restore it from backup
FAQ
Does this mean my world is corrupted?
Not necessarily. It often means a file was being written when an interruption occurred. Try loading the world again first.