[R] about the possible errors in Rgraphviz Package

[Duncan Murdoch]

On 30/03/2010 1:24 PM, HU,ZHENGJUN wrote:
> Hi Duncan,
>
> > (They are pretty hard to find, but I think you can find them on 
> > the Bioconductor site.)  It is > not enough to install the 
> > Rgraphviz package, you also need to install Graphviz.
>
>   Yes I did. Before installing the Rgraphviz package successfully, 
> (1) I downloaded graphviz-2.26.3.msi for MS Windows (XP) and 
> installed it successfully and (2) I also installed the packages 
> from Bioconductor by: (Note: I use MS Windows XP and R 2.10.1 
> version)
>
>   

 From the instructions:

The right version of Graphviz for Bioconductor 2.5 is version
2.20.3.1.

Duncan Murdoch

> source("http://www.bioconductor.org/biocLite.R")
> biocLite()
>
>   I got those error messages:
>
> "Error in inDL(x, as.logical(local), as.logical(now), ...) :
>   unable to load shared library
>  'C:/PROGRA~1/R/R-210~1.1/library/Rgraphviz/libs/Rgraphviz.dll':
>    LoadLibrary failure:  The specified module could not be 
> found."
>
>   Obviously, it seems it is the package problem because it should 
> go to 
> 'C:/PROGRA~1/R/R-2.10.1/library/Rgraphviz/libs/Rgraphviz.dll' 
> instead of
> 'C:/PROGRA~1/R/R-210~1.1/library/Rgraphviz/libs/Rgraphviz.dll'
>
>   Thank you for the reply. Howard
>
>
> On Tue Mar 30 12:50:44 EDT 2010, Duncan Murdoch 
> <murdoch at stats.uwo.ca> wrote:
>
> > On 30/03/2010 10:44 AM, HU,ZHENGJUN wrote:
> >> Hi All,
> >> 
> >>   I tried to install the package of Rgraphviz in the following 
> >> two ways successfully:
> >> 
> >> source("http://bioconductor.org/biocLite.R")
> >> biocLite("Rgraphviz")
> >> 
> >> install.packages(pkgs="C:/Progra~1/R/lib_download/Rgraphviz_1.24.0.zip", 
> >> lib="C:/Progra~1/R/R-2.10.1/library", repos=NULL)
> >> 
> >> but when I loaded the package though library(Rgraphviz) or 
> >> library("Rgraphviz"), and got the same error message below:
> >> 
> >> "Error in inDL(x, as.logical(local), as.logical(now), ...) :
> >>   unable to load shared library 
> >> 'C:/PROGRA~1/R/R-210~1.1/library/Rgraphviz/libs/Rgraphviz.dll':
> >>   LoadLibrary failure:  The specified module could not be found."
> >> 
> > 
> > Most likely the problem is that you haven't followed the 
> > installation instructions.  (They are pretty hard to find, but I 
> > think you can find them on the Bioconductor site.)  It is not 
> > enough to install the Rgraphviz package, you also need to install 
> > Graphviz.
> > 
> > Duncan Murdoch
> >> I think that it is the error in the package because it should go 
> >> to 'C:/PROGRA~1/R/R-2.10.1/library/Rgraphviz/libs/Rgraphviz.dll' 
> >> instead of 
> >> 'C:/PROGRA~1/R/R-210~1.1/library/Rgraphviz/libs/Rgraphviz.dll'
> >> 
> >> Could anyone help me to solve to problem?
> >> Thank you very much for the help. Howard
> >> 
> >> ______________________________________________
> >> R-help at r-project.org mailing list
> >> https://stat.ethz.ch/mailman/listinfo/r-help
> >> PLEASE do read the posting guide 
> >> http://www.R-project.org/posting-guide.html
> >> and provide commented, minimal, self-contained, reproducible 
> >> code.
> >> 
> > 
> > 
> > 
>
>
>
> --
> HU,ZHENGJUN
>