Tcltk hangs when I invoke RCommander

-----Original Message-----
From: r-sig-mac-bounces at r-project.org [mailto:r-sig-mac-bounces at r-
project.org] On Behalf Of Simon Urbanek
Sent: July-12-11 5:08 PM
To: Skelton, James
Cc: HelpDesk; r-sig-mac at r-project.org
Subject: Re: [R-SIG-Mac] Tcltk hangs when I invoke RCommander

Andy,

please check that you have X11 installed. Also see whether clicking on
the X11 icon in the GUI toolbar does start X11. Finally, try setting
Sys.setenv(DISPLAY=":0.0")
before loading tcltk/Rcmdr.

If that doesn't help, please send me the crash log.

Thanks,
Simon




On Jul 12, 2011, at 4:44 PM, Skelton, James wrote:

I am a brand new user of R, running the Macintosh implementation of
R.app
2.13.1 on an iMac 21" (3.06 GHz Core 2 Duo) under OS 10.6.8. I have
Administrator privileges on this machine.
Upon invoking library(Rcmdr) , I get the notice that tcltk is being
called up followed by a system prompt (>). However, the X11 window
doesn't open, and nothing at all happens. When I type any legitimate
command at the prompt, this appears in the R Console window:

*** caught bus error ***
address 0x4, cause 'non-existent physical address'

Traceback:
1: sys.parent()
2: sys.function(sys.parent())
3: formals(sys.function(sys.parent()))
4: match.arg(encoding)
5: match(match.arg(encoding), c("", "bytes", "UTF-8"))
6: textConnection("rval", "w", local = TRUE)
7: capture.output(print(args(help)))
8: paste(capture.output(print(args(help))), collapse = "")
9: gsub("\\s+", " ", paste(capture.output(print(args(help))), collapse
=
""))
10: doTryCatch(return(expr), name, parentenv, handler)
11: tryCatchOne(expr, names, parentenv, handlers[[1L]])
12: tryCatchList(expr, classes, parentenv, handlers)
13: tryCatch(expr, error = function(e) {    call <- conditionCall(e)

if

(!is.null(call)) {        if (identical(call[[1L]],

quote(doTryCatch)))

        call <- sys.call(-4L)        dcall <- deparse(call)[1L]
prefix <- paste("Error in", dcall, ": ")        LONG <- 75L        msg

<-

conditionMessage(e)        sm <- strsplit(msg, "\n")[[1L]]        w <-

14L

+ nchar(dcall, type = "w") + nchar(sm[1L], type = "w")        if
(is.na(w))             w <- 14L + nchar(dcall, type = "b") +

nchar(sm[1L],

               type = "b")        if (w > LONG)             prefix <-
paste(prefix, "\n  ", sep = "")    }    else prefix <- "Error : "

msg

<- paste(prefix, conditionMessage(e), "\n", sep = "")
.Internal(seterrmessage(msg[1L]))    if (!silent &&
identical(getOption("show.error.messages"),         TRUE)) {
cat(msg, file = stderr())        .Internal(printDeferredWarnings())

}

invisible(structure(msg, class = "try-error"))})
14: try(gsub("\\s+", " ", paste(capture.output(print(args(help))),
collapse = "")), silent = TRUE)

Possible actions:
1: abort (with core dump, if enabled)
2: normal R exit
3: exit R without saving workspace
4: exit R saving workspace



I've forwarded the entire core dump to Apple and have a copy of it but
have no idea how to make sense of it.
Odd thing is, this problem doesn't occur on my 2008 Macbook at home,
which runs the same Mac OS. It's peculiar to the iMac at my worksite.
As I'm hoping to use R in some of my advanced undergrad teaching,
it'll be helpful to solve this problem so my students can take
advantage of the RCommander GUI.

Thanks for any light you can shed on this!

--Andy Skelton

*****************************
J.A. Skelton
Dept. of Psychology, Dickinson College Carlisle, PA 17013-2896
E-mail: skelton at dickinson.edu
Phone: 717-245-1309
*****************************