<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div>Thanks, Keep posting -- Matthias</div><div><br></div><div><br></div><div><br></div><br><div><div>On Jun 21, 2013, at 2:34 PM, Saad Bashir wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="ltr">Thank you for the solution. The problem is away.<div><br></div><div style="">This user group is great and your personal support to every one is tremendous. </div><div style=""><br></div><div style="">No better way to learn to program - I can say this after trawling through so much literature over the past year. Long Live Racket!</div>
<div style=""><br></div><div style="">Saad</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Jun 21, 2013 at 9:31 PM, Matthias Felleisen <span dir="ltr"><<a href="mailto:matthias@ccs.neu.edu" target="_blank">matthias@ccs.neu.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div style="word-wrap:break-word"><div><br></div><div>Language -> Clear All Teachpacks </div><div><br></div><div>Language -> Add Teachpack </div>
<div><br></div><div> see two columns </div><div> choose image from 2e column only </div><div><br></div><div>That's it. </div><div><br></div><div>Thanks for the report; the error message should definitely be more informative -- Matthias</div>
<div><br></div><div><br></div><br><div><div><div class="h5"><div>On Jun 21, 2013, at 2:27 PM, Saad Bashir wrote:</div><br></div></div><blockquote type="cite"><div><div class="h5"><div dir="ltr">I have downloaded the Racket v 5.3.5 (June 2013).<div>
<br></div><div>However when I open it to program (I am a beginner and using BSL to study HtDP). the following message is seen in the operation area in red as pasted below . </div>
<div><br></div><div><div><div>Welcome to DrRacket, version 5.3.4 [3m].</div><div>Language: Beginning Student [custom]; memory limit: 128 MB.</div><div>Teachpacks: image.ss and image.rkt.</div></div><div><div><font color="#ff0000"><i>namespace-require/constant: assignment disallowed;</i></font></div>
<div><font color="#ff0000"><i> cannot change constant</i></font></div><div><font color="#ff0000"><i> constant: scene+line</i></font></div></div></div><div><font color="#ff0000"><i><br></i></font></div><div><font color="#000000">The problem the language does not function. When I write even a simple line like (+ 3 2) in the definition area, and click run the following message appears rather than the result:</font></div>
<div><font color="#000000"><br></font></div><div><div><font color="#ff0000"><i>teachpack: the teachpack 'image.ss' was not found</i></font></div><div><font color="#ff0000"><i>> </i></font></div></div>
<div><font color="#ff0000"><i><br></i></font></div><div><font color="#000000">I have tried to download several times but every time the same thing happens.</font></div><div><font color="#000000"><br></font></div>
<div><font color="#000000">Don't know what to do. Please help.</font></div><div><font color="#000000"><br></font></div><div><font color="#000000">Saad</font></div><div><font color="#ff0000"><i><br></i></font></div>
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