NoClassDefFoundError When Using Toolkit or Display

Troubleshooting SDK
1

I am developing for mobile devices and I am trying to get the screen size. I have tried java.awt.Toolkit.Toolkit.getDefaultToolkit().getScreenSize() and I have also tried org.lwjgl.opengl.Display.getWidth(). Every time I use either Toolkit or Display I get a NoClassDefFoundError for Toolkit and for Display. Toolkit is in the Java SDK and Display is in the lwjgl library. Both are automatically included in a new project so I can’t for the life of me figure out why I keep getting the error.

I have tried creating a new hello world game, I restarted JME and restarted my computer, did a clean and build. I can’t seem to get around this error. I did do an update of the nightly build today(4/29/2014) and after that I have been getting this problem.

2

Note: I have now also uninstalled JME3 and re-installed it and I still get the same error.

3

Well, AWT doesn’t exist on Android. I don’t know that lwjgl is used on Android either… not sure there.

Why not just use the normal JME way of getting the screen dimensions?

4

I’d love to. What is the JME3 way?

5
@jcrosby10 said: I'd love to. What is the JME3 way?

You could use:

[java]
cam.getWidth();
cam.getHeight();
// or from someplace other than simple application:
app.getViewPort().getCamera().getWidth();
app.getViewPort().getCamera().getHeight();
[/java]

Syntax may be a little off as this was from memory.