alice-teacher error with a list

[Diane Shryock]

I don't know the answer about the target being null as I haven't worked the
exercise you're referring to. However, I do know that speech bubbles can
usually be virtually shrunk by pulling the camera back, using the arrows in
the scene and the bubble stays proportionate to the size of other objects
in the scene. Hope this makes sense.
Diane Shryock
Reed Middle School

On Fri, Mar 30, 2012 at 10:49 AM, Donna Wilkins <dwilkins at richardwinn.org>wrote:

> **
>  I am using the book *Learning to Program with Alice* and the Duke
> tutorials to teach my 9th and 10th graders. Yesterday we worked on the
> "bunny eats broccoli" tutorial from the Duke site (
> http://www.cs.duke.edu/csed/alice09/tutorials.php  - roll about a third
> of the way down the page)  and ran into a problem when we created the list.
> I worked it twice and got the same error at run-time-- "target cannot be
> null" and the "my first world method" was switched to bunny.eat. For the
> life of me, I can't figure it out.
>
> I just ran the "bunnyEatBroccoliFinishedWithList" from the tutorial page
> itself and the error happened there as well.
>
> Can anyone help, please?????
>
> One more question--- is it possible to alter the size of the speech
> bubbles so that they don't cover another object?
>
> Thank you,
>
> Donna Wilkins
>
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