[BioC] installation of Rgraphviz

Sim, Fraser Fraser_Sim at URMC.Rochester.edu
Wed Apr 29 18:12:29 CEST 2009

Hi Ravi,

There are often problem with graphviz and Rgraphviz based on version changes. Graphviz changes very frequently. Could you send the details of the version of graphviz you are using? I had difficulty using the latest msi file from the website and reverted to an older version with success.


-----Original Message-----
From: bioconductor-bounces at stat.math.ethz.ch [mailto:bioconductor-bounces at stat.math.ethz.ch] On Behalf Of ravi
Sent: Wednesday, April 29, 2009 3:32 AM
To: bioconductor at stat.math.ethz.ch
Subject: [BioC] installation of Rgraphviz

Hi all,
I have followed the instructions for installing Rgraphviz (on a win XP pc with R2.9.0) at the following link :
But I get the following error message (after apparently successfully installing Rgraphviz) :

>  library(Rgraphviz)
Loading required package: graph
Loading required package: grid
Error in inDL(x, as.logical(local), as.logical(now), ...) : 
  unable to load shared library 'C:/Program/R/R-2.9.0/library/Rgraphviz/libs/Rgraphviz.dll':
  LoadLibrary failure:  Det går inte att hitta den angivna modulen.

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

Can you see what the problem is? Is there any way of fixing it?
I have checked and confirmed that Graphviz is on the path on the environment variable window.

Thanking you,

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