[BioC] internal error in package Rgraphviz: "cdt.dll not found"

[Kasper Daniel Hansen]

Hi Fatima

You are using a really old version of R, so we cannot help you with  
that.

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  
problems.

Kasper

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
>
>> library(Rgraphviz)
>
>
>
>> 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  
> laden:
>
>> 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  
> the
> 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
>
> Fatima
>
>
> 	[[alternative HTML version deleted]]
>
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