The relevant message may have been visible in the logs (which you can see via Console.app) just in case you're in a situation where you can't easily switch to the cmdline DrRacket.<div> </div><div>Robby On Sunday, December 1, 2013, Jens Axel Søgaard wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">2013/12/1 Matthew Flatt <<a href="javascript:;" onclick="_e(event, 'cvml', 'mflatt@cs.utah.edu')">mflatt@cs.utah.edu</a>>: > What happens if you run `drracket` directly from the command line, > instead of using `open`? Then I get to see that the error message, that tells me that that I forgot to run make (well it says "bytecode file needs re-compile"). And indeed I did forget to run make. After running make, everything works as expected. For the future I will use bin/drracket rather than open DrRacket.app. Thanks. /Jens Axel _________________________ Racket Developers list: <a href="http://lists.racket-lang.org/dev" target="_blank">http://lists.racket-lang.org/dev</a> </blockquote></div>