[R-SIG-Mac] ‘package ‘XML’ is not installed for 'arch=x86_64'’

[Ricardo.Julio.Rodriguez.Fernandez at sergas.es]

Hi!
> ________________________________________
> From: Simon Urbanek [simon.urbanek at r-project.org]
> Sent: 28 September 2012 02:24
> To: Rodriguez Fernandez, Ricardo Julio
> Cc: r-sig-mac at r-project.org
> Subject: Re: [R-SIG-Mac] ‘package ‘XML’ is not installed for 'arch=x86_64'’

> On Sep 27, 2012, at 6:25 PM, <Ricardo.Julio.Rodriguez.Fernandez at sergas.es> wrote:
>
>>  Hi,
>>
>> I'm trying to confirm I understand how packages are installed and manage in R to be able to better interpret error/warning messages.
>>
>>  In a Mac OS X installation of R I get this error:
>>
>>>  require(XML)
>>  Loading required package: XML
>>  Failed with error:  ‘package ‘XML’ is not installed for 'arch=x86_64'’
>>
>>  But the graphical interface R Package Installer says that version 3.9-4 is installed.
>>
>
> It is installed, but only for 32-bit and you are trying to load it in 64-bit R.
>
>
>>  Please, where am I wrong?
>
> Use 32-bit R or if you want to use XML in 64-bit R, you have to compile it for 64-bit. AFAICS XML currently doesn't
> pass checks on any platform, so there are no binaries and you have to compile it from sources. If you want both 32-bit and 64-bit > you'll have to use --merge-multiarch INSTALL option or use the two-step process described in the Mac FAQ.
>
> Cheers,
> Simon

Following other replies to this thread this is what I get here after installing from the command line without switches the XML binary available at CRAN...

Package: XML
Version: 3.9-4
ReleaseDate: 2012/01/30
...
Repository: CRAN
Date/Publication: 2012-01-31 07:37:18
Built: R 2.15.0; universal-apple-darwin9.8.0; 2012-03-31 00:12:17 UTC; unix
Archs: i386, ppc, x86_64

So, it seems that i386 and x86_64 are available by installing that binary. Please, what am I misunderstanding here?

Thanks for your help!

Ricardo

>>  Thanks!
>>
>>
>>>  sessionInfo()
>>  R version 2.15.1 (2012-06-22)
>>  Platform: x86_64-apple-darwin9.8.0/x86_64 (64-bit)
>>
>>  locale:
>>  [1] en_GB.UTF-8/en_GB.UTF-8/en_GB.UTF-8/C/en_GB.UTF-8/en_GB.UTF-8
>>
>>  attached base packages:
>>  [1] graphics  grDevices utils     datasets  stats     methods   base
>>
>>  other attached packages:
>>  [1] foreign_0.8-50
>>
>>  loaded via a namespace (and not attached):
>>  [1] tools_2.15.1
>>>
>>

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