[racket] Running in browser "counter.rkt"

Hi all, I've installed succesfully Moby in my system, but when trying to
run
the "counter.rkt" example, with the function
run-in-browser<http://planet.racket-lang.org/#(def._((planet._main..rkt._(dyoo._moby..plt._3._9))._run-in-browser))>
 to
provide the Javascript environment in the web browser,
I get the message:

..\AppData\Roaming\Racket\planet\300\5.0.2\cache\dyoo\js-vm.plt\1\12\private\translate-bytecode-structs.rkt:25:8:
compile: unbound identifier in module in: internal:indirect?

What I'm missing?

Thanks!

jc
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