[BioC] internal error in package Rgraphviz: "cdt.dll not found"
Kasper Daniel Hansen
khansen at stat.berkeley.edu
Thu Sep 3 11:25:55 CEST 2009
On Sep 2, 2009, at 11:10 , Fatima Kreusch wrote:
> Hi Kasper,
> thank you for your reply. I am looking for the adequate Windows-
> version of
> Graphviz, but I can only find the current one (2.24), which is not
> compatible with the R version I use. With an updated R (2.9.1) it
> did not
> work, either. Could you send me a link to an older Graphviz-version
> which I
> can download, especially version 2.20.3? I only found a Mac version
> this. Thank you very much,
> -----Ursprüngliche Nachricht-----
> Von: Kasper Daniel Hansen [mailto:khansen at stat.berkeley.edu]
> Gesendet: Freitag, 31. Juli 2009 20:57
> An: Fatima Kreusch
> Cc: bioconductor at stat.math.ethz.ch
> Betreff: Re: [BioC] internal error in package Rgraphviz: "cdt.dll
> not found"
> Hi Fatima
> You are using a really old version of R, so we cannot help you with
> When you install packages under Windows, all it does is download a zip
> file and extracting it (more or less), so the fact that youa re able
> to install the package does not mean much.
> You will need to install Graphviz on your computer, specifically
> version 2.20.3 (and not a later one). There are instructions in the
> README file in the top level directory of the the source tarball.
> We are aware that this is not the most obvious place to look and it is
> on the to do list. Please also see ton's of emails with similar
> On Jul 29, 2009, at 6:59 , Fatima Kreusch wrote:
>> Hello Bioconductor!
>> I wanted to use the Rgraphviz package, as it would be very useful
>> for me to
>> visualize graphs and networks. However, I always get an Error
>> message when I
>> type in
>>> Error in inDL(x, as.logical(local), as.logical(now), ...) :
>>> kann shared library
>> 'C:/PROGRA~2/R/R-27~1.2/library/Rgraphviz/libs/Rgraphviz.dll' nicht
>>> LoadLibrary failure: Das angegebene Modul wurde nicht gefunden.
>>> Error : .onLoad in 'loadNamespace' für 'Rgraphviz' fehlgeschlagen
>>> Fehler: Laden von Paket/Namensraum für 'Rgraphviz' fehlgeschlagen
>> Which basically means that the package cannot be loaded and the
>> modul was
>> not found. Additionally, an error window pops up, saying that there
>> the file
>> “cdt.dll” was not found and the package shall be re-installed.
>> I tried to install the package several times in different versions
>> of R, and
>> during the installation there are no problems. What is the cause for
>> problem I have? As many other package also use Rgraphviz, there
>> seems to be
>> no alternative, is there?
>> Thank you for your help!
>> Best wishes
>> [[alternative HTML version deleted]]
>> Bioconductor mailing list
>> Bioconductor at stat.math.ethz.ch
>> Search the archives:
More information about the Bioconductor