Hi,

I'm having trouble using the base student languages from scratch (v6.0.1). 
(strangely enough, it's the first time ever I'm really interested in running 
these languages since the whole #lang story was introduced)

1. If I start DrRacket and try to follow the instructions online 
http://www.ccs.neu.edu/home/matthias/HtDP2e/part_prologue.html
"Start DrRacket and choose “Beginning Student Language” from the “How to Design 
Programs” submenu in the “Language” menu."
-> there is simply no such submenu in the language menu, nor is there an htdp 
section in the "choose language..." dialog

2. If I put #lang htdp/bsl then I can use bsl and run it, but the stepper does 
not work:
send: no such method
  method name: stepper-button-callback
  class name: ...ket/version/tool.rkt:176:9
  context...:
   /Applications/Racket/collects/racket/private/class-internal.rkt:4387:0: 
obj-error34
   /Applications/Racket/share/pkgs/htdp-lib/stepper/drracket-button.rkt:11:3
   /Applications/Racket/collects/racket/private/more-scheme.rkt:147:2: 
call-with-break-parameterization
   /Applications/Racket/collects/racket/private/more-scheme.rkt:264:2: 
call-with-exception-handler
   
/Applications/Racket/share/pkgs/gui-lib/mred/private/wx/cocoa/window.rkt:751:4: 
dispatch-on-event method in window%
   
/Applications/Racket/share/pkgs/gui-lib/mred/private/wx/common/queue.rkt:451:6
   
/Applications/Racket/share/pkgs/gui-lib/mred/private/wx/common/queue.rkt:502:32
   
/Applications/Racket/share/pkgs/gui-lib/mred/private/wx/common/queue.rkt:650:3

Clearly, I must be doing something wrong, because those things should work 
right out of the box I assume!

(I tried running raco setup, that didn't fix the issues)

Thanks,

-- Éric



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