Hi Danny thanks for your investigation and answer Yvan <div class="gmail_quote">2013/2/2 Danny Yoo <<a href="mailto:dyoo@hashcollision.org" target="_blank">dyoo@hashcollision.org</a>> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Sat, Feb 2, 2013 at 2:17 AM, Yvan Godin <<a href="mailto:yvan.godin@gmail.com">yvan.godin@gmail.com</a>> wrote: > Hello Racketers > I am trying last build Racket 5.3.2.3 and with this single lines > #lang racket > (require planet2) > (install "sxml") > (install "mongodb") </div>Hi Yvan, Confirmed. I see this too, and just with the (install "sxml") part. This happens in DrRacket 5.3.2. Here's the error I see: --- <div class="im"> reference to a variable that has the wrong procedure or structure-type shape reference phase level: 0 </div> variable module: "/Applications/Racket v5.3.2/collects/racket/list.rkt" variable phase: 0 reference in module: "/Applications/Racket v5.3.2/collects/racket/bytes.rkt" in: add-between11.1 --- ... Ok, this is even odder. If I do the same commands in console-level Racket, I do not see the error: --- slab:racket dyoo$ racket Welcome to Racket v5.3.2. <div class="im">> (require planet2) > (install "sxml") </div>racket install: package is already installed package: sxml --- ... Ok, there seems to be a bad interaction with the language preference setting "Populate Compiled Directories (for faster loading)". There's a potential relationship with something Neil Toronto saw at racket-dev: <a href="http://www.mail-archive.com/dev@racket-lang.org/msg08228.html" target="_blank">http://www.mail-archive.com/dev@racket-lang.org/msg08228.html</a> </blockquote></div> -- ------------------------------------------------------------<div style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)"> Yvan Godin</div><div style="color:rgb(136,136,136);font-family:arial,sans-serif;font-size:12.666666984558105px;background-color:rgb(255,255,255)">------------------------------------------------------------ </div>