The Internal Exception Java.IO.IOException error usually occurs when you launch Minecraft, or when the game is underway. This error can be caused by a number of different things.

Minecraft Internal Exception errors can be frustrating to get rid of if you do not know what to do.

Then there’s the NullPointerException. Null pointer exception is an “exception” (error) that is particularly common when programming in Java.

If you’re playing this game on your Windows 10 PC and suddenly encountered an error: org.lwjgl.LWJGLException: Pixel format not accelerated, there’s something that you need to fix.