[racket] Dr Racket error OS X Lion

From: Todd O'Bryan (toddobryan at gmail.com)
Date: Sat Aug 6 22:33:34 EDT 2011

I realize there's huge reluctance to muck with a release before having
time to check everything, but if it's possible to fix this with a
single small change that everyone agrees is unlikely to break anything
else, might you consider releasing a 5.1.3 or 5.1.2b or 5.1.2+ or some
new version number? The thought of having to deal with classes of high
school sophomores who download the latest version and then complain
that it doesn't work is already scaring me. And having students
download Nightly Builds means that I'd have maybe dozens of versions
being run, all of which might work slightly differently.

I think college students tend to be able to figure these things out
more easily, because they either have laptops or live near other
students and once one person figures it out, the solution spreads.
Since high school kids tend to use the family desktop, they're sitting
at home by themselves and even if they have access to someone who's
figured out how to fix the error, getting the explanation over the
phone or IM is not trivial. And that doesn't include the parents who
don't give their kids administrative access to the machine.


On Sat, Aug 6, 2011 at 10:07 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> What is the exact error?
> One of the possible (likely) issues can be fixed by removing line 1534
> from plt/collects/framework/private/text.rkt. The line in question
> looks like this:
>      (set! todo '())
> (You have to restart DrRacket after that change to see the fix.)
> Of course, do send along the exact error, just in case you're seeing
> something different.
> Robby
> On Sat, Aug 6, 2011 at 8:59 PM, Mike Owens <m.owens at yahoo.com> wrote:
>> I just upgraded to Lion (thinking I should have waited) which forced an
>> upgrade to Racket 5.1.2. Unfortunately there is an error when you load a
>> Racket file or type Sexp into the Dr Racket editor. I saw on the Dev list
>> that the error is known and is already fixed in the Repo. Is there a patch
>> somewhere that I can get or a knew executable or something?
>> Thanks
>> Mike
>> ---
>> ᚱ Rad: riding
>> When one sits in one's home
>> everything looks so easy;
>> talk is easier than action.
>> To walk in another's shoes
>> and do better,
>> that is a most difficult task.
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