Since it is autogenerated code, most of the time it is just run once (via a shell call) and discarded - it's the results that are important and send back to the knowledge base. So, I don't need to keep the .zo files up to date. In fact, the only reason I ever execute the autogenerated code under DrRacket is when I'm debugging the code generator itself. However, we're now looking at using the generated models themselves in some more advanced parametric analysis. That's why I split the Monte Carlo code out separately and ran into the bug. The production system is still under V4.2.5 and doesn't have the problem - and it is strictly in the run-once-and-forget mode. I only ran into the problem on my laptop, which I'd rather not drop back to pre-V5. I'll see if disabling the automatic compilation also solves the problem. Doug <div class="gmail_quote">On Tue, Jul 20, 2010 at 1:45 PM, Robby Findler <<a href="mailto:robby@eecs.northwestern.edu">robby@eecs.northwestern.edu</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">Did you try disabling the automatic compilation (in the details portion of the language dialog)? My guess is that that will make the problem go away. (If so, you can also then start running "raco make <filename.rkt>" in the shell to keep the .zo files up to date and save on load times.) Robby On Tue, Jul 20, 2010 at 2:24 PM, Doug Williams <div><div></div><div class="h5"><<a href="mailto:m.douglas.williams@gmail.com">m.douglas.williams@gmail.com</a>> wrote: > Okay, some more information. > > If I execute DrRacket with the Monte Carlo file, make sure Debugging is > checked (in the Language dialog with Show Details), and hit Run, I get the > error: > > string<?: expects type <string> as 1st argument, given: #f; other arguments > were: > "0fe14e326dff1551df22271bdae03080a46dff5a9cd41e2f58a86ac8158ca605f292b20a02896479" > > with no backtrace available. > > If I then select No debugging or profiling and hit Run, I get the error: > > ..\..\..\..\..\..\..\..\..\Program > Files\Racket\collects\racket\private\sort.rkt:85:19: string<?: expects type > <string> as 1st argument, given: #f; other arguments were: > "082577093f20c187869d70b940a5b298cd5572084c12d02f2de08868342b8264c39b7fe111a38bf5" > > with a backtrace. > > If I then select Debugging and profiling and hit Run, it actually runs > (although more slowly) and produces a profile. > > Interestingly, I can then go and check either Debugging or No debugging or > profiling and it runs. But, if I exit and restart DrRacket it goes back to > not working. > > Weird, huh? > > Doug > > On Tue, Jul 20, 2010 at 11:18 AM, Doug Williams > <<a href="mailto:m.douglas.williams@gmail.com">m.douglas.williams@gmail.com</a>> wrote: >> >> I seem have hit the same (or related) bug that Laurent Orseau submitted as >> bug 11017 (but in a completely different context that might help track it >> down) and I haven't been able to find a workaround. The actual error message >> I get is: >> >> string<?: expects type <string> as 1st argument, given: #f; other >> arguments were: >> >> "c29a751537a750b825f72c9ee37eea737a0f3a8b9cd41e2f58a86ac8158ca605f292b20a02896479" >> >> coming from somewhere in the bowels of DrRacket. I don't get the error >> when using Racket (i.e., MzScheme). I'm not sure if this machine was running >> the stock V5.0 or a post-V5.0 nightly build that fixed a PLaneT problem I >> was having. But, the pre-release 5.0.1 build gives the same error. I >> reloaded V4.2.5 and the code runs fine there. >> >> I was hoping that the string in the error message itself might give >> someone in the know some idea of the problem. >> >> Unfortunately, this happens in a rather large autogenerated agent-based >> simulation that isn't easily posted - although I can send the code and the >> development packages it uses to someone if they need it. >> >> A short extract of the 'main' program that runs: >> >> #lang scheme >> ;;; Agent Generation from Templates - PRIME (AGenT') by SET Corporation >> (an SAIC Company) >> ;;; Autogenerated PLT Scheme source code >> invest-in-pa-yangi-yangi-tucker---plausible-outcomes-212-main.ss >> ;;; Generated Monday, July 19th, 2010 12:33:42pm >> >> (require (planet williams/madness/madness) >> >> "invest-in-pa-yangi-yangi-tucker---plausible-outcomes-212-arguments.ss" >> >> "invest-in-pa-yangi-yangi-tucker---plausible-outcomes-212-argument-values.ss" >> >> "invest-in-pa-yangi-yangi-tucker---plausible-outcomes-212-data-collection.ss") >> >> ... <about 1300 SLOC redacted> >> >> ;;; >> ;;; Monte Carlo loop INVEST-IN-PA-YANGI-YANGI-TUCKER---PLAUSIBLE-OUTCOMES >> ;;; >> (define (INVEST-IN-PA-YANGI-YANGI-TUCKER---PLAUSIBLE-OUTCOMES n) >> (with-new-simulation-environment >> (let ((aggregate-instance-index (make-hasheq))) >> (for ((i (in-range n))) >> (INVEST-IN-PA-YANGI-YANGI-TUCKER i aggregate-instance-index)) >> (print-statistics aggregate-instance-index) >> (generate-exhibit-files aggregate-instance-index) >> (generate-results-XML aggregate-instance-index n)))) >> >> ;;; >> ;;; Execute Monte Carlo >> ;;; >> >> (INVEST-IN-PA-YANGI-YANGI-TUCKER---PLAUSIBLE-OUTCOMES 10) >> >> ;;; >> ;;; Module Contracts >> ;;; >> >> (provide (all-defined-out)) >> >> If I simply remove the call to >> (INVEST-IN-PA-YANGI-YANGI-TUCKER---PLAUSIBLE-OUTCOMES 10) and move it to >> it's own package: >> >> #lang scheme >> ;;; Agent Generation from Templates - PRIME (AGenT') by SET Corporation >> (an SAIC Company) >> ;;; Autogenerated PLT Scheme source code >> invest-in-pa-yangi-yangi-tucker---plausible-outcomes-212-monte-carlo.ss >> ;;; Generated Monday, July 19th, 2010 12:33:43pm >> >> (require >> "invest-in-pa-yangi-yangi-tucker---plausible-outcomes-212-main.ss") >> >> >> ;;; >> ;;; Execute Monte Carlo >> ;;; >> >> (INVEST-IN-PA-YANGI-YANGI-TUCKER---PLAUSIBLE-OUTCOMES 10) >> >> I get the error above. [Again, it runs under Racket (i.e., MzScheme).] >> >> Please let me know if there are some switches I can set or otherwise >> provide additional information. >> >> Ah, I just ran it with "No debugging or profiling" checked and got some >> additional information - seems interesting that I got more information with >> no debugging. But anyway the error printed is now >> >> ..\..\..\..\..\..\..\..\..\Program >> Files\Racket\collects\racket\private\sort.rkt:85:19: string<?: expects type >> <string> as 1st argument, given: #f; other arguments were: >> "146047b7b2121bf8f7b15d7c2ef396b710f394474c12d02f2de08868342b8264c39b7fe111a38bf5" >> >> It also gave a backtrace that I copied and pasted into the attached file. >> [Was a better way to do that?] >> >> Doug >> >> > > </div></div><div class="im">> _________________________________________________ > For list-related administrative tasks: </div>> <a href="http://lists.racket-lang.org/listinfo/dev" target="_blank">http://lists.racket-lang.org/listinfo/dev</a> > </blockquote></div>