[BioC] Rgraphviz install

Søren Højsgaard Soren.Hojsgaard at agrsci.dk
Tue Oct 14 20:05:10 CEST 2008

I have encountered the same problem. One explanation might be that Rgraphviz and graphviz are out of sync: With graphviz version 2.2 (I think it was) I had the same problem, but if I installed graphviz version 2.16 things work fine


Fra: bioconductor-bounces at stat.math.ethz.ch på vegne af Tim Smith
Sendt: ti 14-10-2008 19:15
Til: bioc
Emne: [BioC] Rgraphviz install


I was trying to install Rgraphviz. I was able to download it with biocLite, but couldn't load the package. I have reproduced the error below:

> source("http://bioconductor.org/biocLite.R")
> biocLite("Rgraphviz")
Running biocinstall version 2.2.11 with R version 2.7.2
Your version of R requires version 2.2 of BioConductor.
trying URL 'http://bioconductor.org/packages/2.2/bioc/bin/windows/contrib/2.7/Rgraphviz_1.18.1.zip'
Content type 'application/zip' length 1012303 bytes (988 Kb)
opened URL
downloaded 988 Kb

package 'Rgraphviz' successfully unpacked and MD5 sums checked

The downloaded packages are in
        C:\Documents and Settings\ts\Local Settings\Temp\RtmpQDoM9f\downloaded_packages
updating HTML package descriptions
> library("Rgraphviz")
Error in inDL(x, as.logical(local), as.logical(now), ...) :
  unable to load shared library 'C:/Program Files/R/R-2.7.2/library/Rgraphviz/libs/Rgraphviz.dll':
  LoadLibrary failure:  The specified module could not be found.

Error : .onLoad failed in 'loadNamespace' for 'Rgraphviz'
Error: package/namespace load failed for 'Rgraphviz'

If I replace the Rgraphviz from a previous version on R, it loads ok.

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