David,

Thank you.  You are correct - I was inadvertently accessing an old 
version.  Deleting the old and re-installing means I can fire up R 
V3.0.1 which runs fine.

However, I still can't get R Studio to start up, receivng the following 
message:


    ERROR r error 4 (R code execution error) [errormsg=Error in
    identical(call[[1L]], quote(doTryCatch)) :

    7 arguments passed to .Internal(identical) which requires 5

    ,
    code=local(source("/Applications/RStudio.app/Contents/Resources/R/Tools.R",
    local=TRUE, echo=FALSE, verbose=FALSE, encoding='UTF-8'))]; OCCURRED
    AT: core::Error r::exec::<anonymous
    namespace>::evaluateExpressions(SEXP, SEXP, SEXP *, sexp::Protect *)
    /Users/rstudio/rstudio/src/cpp/r/RExec.cpp:145



Even though I re-installed the latest version 0.97.551.  I wonder if 
there is an old Library or other support file that was not properly 
replaced?

Thank you

Norman Jessup
> On Jun 21, 2013, at 7:27 PM, Norman Jessup wrote:
>
>> Hello,
>>
>> I've recently upgraded to R 2.11.1 on Mac OS X 10.8.4.   Now when I start R up I get the following message:
>>
>> Error in identical(call[[1L]], quote(doTryCatch)) :
>>   7 arguments passed to .Internal(identical) which requires 5
>> Error in normalizePath(dirname(pkgpath), "/", TRUE) :
>>   3 arguments passed to .Internal(normalizePath) which requires 1
>> cannot find system Renviron
>>
>> I get a similar message with user-defined functions ( i.e "X arguments passed when Y defined" ) though the functions appear to work.  This problem is also encountered when Rstudio fires up and so it cannot run now.
>>
>> I did find a post that suggested it may be due to R accessing an old, possibly 32 bit library (I used to have 32 and 64 bit R installed and they both ran without trouble).  Possibly I need to completely clean out the installation and start again?  but I'm not sure precisely where the R support files are stored on Macs.  Can anyone give me a pointer and/or suggest an alternative fix?
> R 2.11.1 is a rather archaic version. The current version is 3.0.1. You seems to have skipped major versions 2.12, 2.13,, 2.14 2.15. I doubt that OSX 10.8.4 was available when 2.11.1 was compiled. There is a mailing list for MacOS versions of R but I doubt there will be much interest in supporting version 2.11.1 on OSX 10.8.4. I suggest you install instead version 3.0.1
>


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