java.lang.OutOfMemoryError: Java heap space

OutOfMemoryError: Java Heap Space Exhausted

Minecraft JVM has depleted allocated heap memory while loading heavy modpacks or chunks.

Official Primary Solution

How to Fix java.lang.OutOfMemoryError: Java heap space

Proper JVM heap allocation (-Xmx) configuration in SuperLauncher for smooth modpack & shader gameplay.

Not sure which solution fits your case?

Run the interactive wizard for your OS and mod loader.