Le dimanche 4 septembre 2016 01:44:01 UTC+2, David K. Storrs a écrit : > Welcome to DrRacket, version 6.6 [3m]. > Language: R5RS [custom]; memory limit: 128 MB.
It seems that DrRacket is configured to use the R5RS language. Using the bottom-left menu (or Ctrl+L), select "The Racket language Use #lang at the beginning of the program to specify the dialect to use…". I can reproduce your error message if the R5RS language is used instead. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
