Is it possible you're misparsing the error message? The message (I think!) says that the unit expects its import to be drscheme:tool^ but that it is invoked with something else (drracket:tool^ in this case).
(Not that this defends anything about the head-scratching-ness, but just to clarify what the message is trying to say.) Robby On Thu, Feb 10, 2011 at 11:14 AM, John Clements <cleme...@brinckerhoff.org> wrote: > Updating tools from drscheme->drrracket involves two steps: > > 1) changing the tool to refer to drracket, and > 2) changing the info.rkt file to refer to drracket-tools rather than tools. > > Unfortunately, if you do #2 before #1, you get a real head-scratcher of an > error message: > > define-unit-binding: unit argument expects an untagged import with signature > drscheme:tool^, which this usage context does not supply > > The baffling thing about this is that drscheme:tool^ *is* the signature that > this thing supplies. I took a look at the tool infrastructure, and there's > some regexp-rewriting stuff that scared me. I conjecture that the (correct) > error message is one that refers to the drracket:tool^ signature, but that > it's getting rewritten into one that refers to drscheme:tool^. > > I'm not sure how many people are going to fall into this hole, but the error > message here steers you in the wrong direction. > > John > > _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/dev
