gistfile1.txt

Exception in thread "LWJGL Application" com.badlogic.gdx.utils.GdxRuntimeException: java.lang.NoClassDefFoundError: de/fau/cs/mad/fly/ui/LevelGroupScreen
	at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:120)
Caused by: java.lang.NoClassDefFoundError: de/fau/cs/mad/fly/ui/LevelGroupScreen
	at de.fau.cs.mad.fly.ui.MainMenuScreen.setLevelGroupScreen(MainMenuScreen.java:63)
	at de.fau.cs.mad.fly.ui.MainMenuScreen.access$000(MainMenuScreen.java:31)
	at de.fau.cs.mad.fly.ui.MainMenuScreen$1.clicked(MainMenuScreen.java:104)
	at com.badlogic.gdx.scenes.scene2d.utils.ClickListener.touchUp(ClickListener.java:89)
	at com.badlogic.gdx.scenes.scene2d.InputListener.handle(InputListener.java:57)
	at com.badlogic.gdx.scenes.scene2d.Stage.touchUp(Stage.java:342)
	at com.badlogic.gdx.InputMultiplexer.touchUp(InputMultiplexer.java:96)
	at com.badlogic.gdx.backends.lwjgl.LwjglInput.processEvents(LwjglInput.java:320)
	at com.badlogic.gdx.backends.lwjgl.LwjglApplication.mainLoop(LwjglApplication.java:199)
	at com.badlogic.gdx.backends.lwjgl.LwjglApplication$1.run(LwjglApplication.java:114)
Caused by: java.lang.ClassNotFoundException: de.fau.cs.mad.fly.ui.LevelGroupScreen
	at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
	... 10 more