First, you need to add an image of a hamburger to the 'images' folder of your project. Then you can use 'setImage' on a Magdalena object.

Also, this part looks very strange -- (Ljava/lang/String;II)V I wonder if you got a good download on the new version. You did download Greenfoot version 2.4 and are now running it, correct?

I have never seen that message, "NoSuchMethodError", during runtime. What is now your line 38 in the Bebe class? (copy it and paste it here)

You already have one 'comida' value showing. Are you not able to show another one in the same way? I will look at what you actually have.

As an alternative, you could use the 'drawstring' method on the background image of the world. However, you will have to replace the background image each time the value of 'comida' changes (to remove the old string -- so you can draw the new one -- so you will not end up with string over top of string).

I think you need Greenfoot version 2.4 to use it. If you are not using the latest version, then you need to create an Actor subclass and set a Greenfoot image of the text you want to display to it. You will need a method to change the image when the value of 'comida' changes.