Hi,
I work with Windows XP. I recently updated to R
v.2.7 and Bioconductor v.2.2, and am now having
trouble loading libraries of packages that appear to
have been installed successfully.

An example for the workflow and error message I get
when I try to load the library for the “RMySQL”
package follows:

utils:::menuInstallPkgs()
trying URL
'http://www.stats.ox.ac.uk/pub/RWin/bin/windows/contrib/2.7/RMySQL_0.6-0.zip'
...
package 'RMySQL' successfully unpacked and MD5 sums
checked

The downloaded packages are in
C:\Documents and Settings\YYYYYY\Local
Settings\Temp\RtmpF3NdQe\downloaded_packages
updating HTML package descriptions

> library(RMySQL)
Error in inDL(x, as.logical(local), as.logical(now),
...) :
unable to load shared library
'C:/PROGRA~1/R/R-27~1.1/library/RMySQL/libs/RMySQL.dll':
LoadLibrary failure: The specified module could not
be found.
Error: package/namespace load failed for 'RMySQL'

I thought it was simply an issue with the RMySQL
.dll (as discussed at
http://134.148.236.121/R/e2/help/07/10/28144.html),
but I get an identical error with the xps package,
even though the xps.dll file is present in the
C:\Program Files\R\R-2.7.1\library\xps\libs folder.

Error in inDL(x, as.logical(local), as.logical(now),
...) :
unable to load shared library
'C:/PROGRA~1/R/R-27~1.1/library/xps/libs/xps.dll':
LoadLibrary failure: The specified module could not
be found.
Error: package/namespace load failed for 'xps'
This error does not appear for all downloaded
packages – for example, libraries for the
“affy”, “multtest” and “plier” packages
install fine.

Can anyone tell me why R can’t “find” the
RMySQL.dll & xps.dll files, and how to bypass this
issue? Any help would be much appreciated!

Regards,
Marie

Marie Alles
Garvan Institute of Medical Research
384 Victoria Street, Darlinghust, Sydney, NSW 2010,
AUSTRALIA

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