Igraph 5.2 causes a DLL error in R 2.9.0. Here's the log of a clean R and igraph install. I also included the version info.
R version 2.9.0 (2009-04-17)
Copyright (C) 2009 The R Foundation for Statistical Computing
ISBN 3-900051-07-0
[…]
> utils:::menuInstallPkgs()
--- Please select a CRAN mirror for use in this session ---
Content type 'application/zip' length 2653603 bytes (2.5 Mb)
opened URL
downloaded 2.5 Mb
package 'igraph' successfully unpacked and MD5 sums checked
The downloaded packages are in
C:\Documents and Settings\lapoinpi\Local Settings\Temp\RtmpTbbYgV\downloaded_packages
updating HTML package descriptions
> library(igraph)
Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared library 'C:/PROGRA~1/R/R-29~1.0/library/igraph/libs/igraph.dll':
LoadLibrary failure: The specified procedure could not be found.
Error : .onLoad failed in 'loadNamespace' for 'igraph'
Error: package/namespace load failed for 'igraph'
>
> version
_
platform i386-pc-mingw32
arch i386
os mingw32
system i386, mingw32
status
major 2
minor 9.0
year 2009
month 04
day 17
svn rev 48333
language R
version.string R version 2.9.0 (2009-04-17)
Regards,
Pierre Lapointe