FAQ

It won't launch! NoClassDefFoundError

Exception: java.lang.NoClassDefFoundError thrown from the UncaughtExceptionHandler in thread "main"

• If you get this crash report, copy your natives into the same folder as the .jar and launch from within the folder (Read the README.md file for where to find and copy natives from)
• If that doesn't work, set java.library.path when launching (java -Djava.library.path="path/to/natives" -jar path/to/jar)

Why have all of the buttons disappeared?

You pressed F1. Press F1 again.

When I imported my OBJ model, it was completely black!

You need to texture your model.