Hello,<br><br>I ran "(define my-generator (generator () (yield 1) (yield 2 3 4)))" on DrRacket's Interactions Window, but forgot to require racket/generator first.<br><br>The error message was:<br>#%app: missing procedure expression; probably originally (), which is an illegal empty application in: (#%app)<br>
<br><br>Which makes sense.<br>However, wouldn't it be more helpful if it would first complain about `generator' being undefined?<br><br><br>[]'s<br><br clear="all">Rodolfo Carvalho<br>