[racket] ufo structure problem

From: Pierpaolo Bernardi (olopierpa at gmail.com)
Date: Fri Mar 30 03:46:22 EDT 2012

Hello Roelof,

On Fri, Mar 30, 2012 at 09:32, Roelof Wobben <r.wobben at home.nl> wrote:

> (define (show-ufo ufo)
>  (place-image BLU (ufo-loc u) MTS))
> But still I can't get the show-ufo work.

Check carefully the name of your variables!

Doesn't DrRacket give you an explicative error message in this case?


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