UIButton nullpointer

Troubleshooting gui
1

I’m trying to use a couple of UIButtons as a test, but when I try to run the following, it throws a Nullpointer


UIButton _button = new UIButton(name, x, y, w, h, new InputHandler(),  new UIColorScheme(), UIButton.BORDER | UIButton.DRAW_DOWN | UIButton.DRAW_OVER);



The error is

Could not load image...  URL was null.
Could not load image...  URL was null.
java.lang.NullPointerException
        at com.jme.ui.UIText.<init>(Unknown Source)
        at com.jme.ui.UIText.<init>(Unknown Source)
        at com.jme.ui.UIButton.setText(Unknown Source)
        at EnvDev.createUIButton(EnvDev.java:125)
        at EnvDev.attachEditBar(EnvDev.java:89)
        at EnvDev.initGame(EnvDev.java:184)
        at com.jme.app.BaseGame.start(Unknown Source)
        at EnvDev.main(EnvDev.java:275)



I'm not sure where the "Could not load image" is coming from. Anyone have any idea as to what causes this?
2

You should specify the textures you want the button to be drawn by - use the other constructor.