So how did you add the Mario object to the world initially? It doesn't seem to be an object cause when I right-click on it, it doesn't s show the methods for the class.

I just need some help. I am trying to edit my greenFoot code from Eclipse IDE after following some instructions I got from googling. I am getting the following errors. I will really appreciate if anyone that has done this can help java.lang.reflect.InvocationTargetException at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at greenfoot.export.GreenfootScenarioViewer.instantiateNewWorld(GreenfootScenarioViewer.java:370) at greenfoot.export.GreenfootScenarioViewer.init(GreenfootScenarioViewer.java:264) at greenfoot.export.GreenfootScenarioViewer.<init>(GreenfootScenarioViewer.java:132) at greenfoot.export.GreenfootScenarioViewer$1.run(GreenfootScenarioViewer.java:115) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.ExceptionInInitializerError at Sign.<init>(Sign.java:8) at NWorld.<init>(NWorld.java:16) ... 16 more Caused by: java.lang.IllegalArgumentException: java.io.FileNotFoundException: Could not find file: -BitFont/0.png at greenfoot.GreenfootImage.loadFile(GreenfootImage.java:202) at greenfoot.GreenfootImage.<init>(GreenfootImage.java:100) at BitFont.<clinit>(BitFont.java:8) ... 18 more Caused by: java.io.FileNotFoundException: Could not find file: -BitFont/0.png at greenfoot.util.GreenfootUtil.getURL(GreenfootUtil.java:560) at greenfoot.GreenfootImage.loadFile(GreenfootImage.java:199) ... 20 more java.lang.ExceptionInInitializerError at Sign.<init>(Sign.java:8) at NWorld.<init>(NWorld.java:16) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) at java.lang.reflect.Constructor.newInstance(Unknown Source) at greenfoot.export.GreenfootScenarioViewer.instantiateNewWorld(GreenfootScenarioViewer.java:370) at greenfoot.export.GreenfootScenarioViewer.init(GreenfootScenarioViewer.java:264) at greenfoot.export.GreenfootScenarioViewer.<init>(GreenfootScenarioViewer.java:132) at greenfoot.export.GreenfootScenarioViewer$1.run(GreenfootScenarioViewer.java:115) at java.awt.event.InvocationEvent.dispatch(Unknown Source) at java.awt.EventQueue.dispatchEvent(Unknown Source) at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source) at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.pumpEvents(Unknown Source) at java.awt.EventDispatchThread.run(Unknown Source) Caused by: java.lang.IllegalArgumentException: java.io.FileNotFoundException: Could not find file: -BitFont/0.png at greenfoot.GreenfootImage.loadFile(GreenfootImage.java:202) at greenfoot.GreenfootImage.<init>(GreenfootImage.java:100) at BitFont.<clinit>(BitFont.java:8) ... 18 more Caused by: java.io.FileNotFoundException: Could not find file: -BitFont/0.png at greenfoot.util.GreenfootUtil.getURL(GreenfootUtil.java:560) at greenfoot.GreenfootImage.loadFile(GreenfootImage.java:199) ... 20 more