​Hello,

 

My name is zahra. I'm MSC student at Tarbiat Modares University.

 

I have followed the instructions for installing Rgraphviz (on a win 7.0 with R2.14.2) at the following link :
>>>>>http://www.graphviz.org/pub/graphviz/stable/windows/graphviz-2.28.0.msi
>>>>> But I get the following error message (after apparently successfully installing Rgraphviz) :
>>>>> 
>>>>>> library(Rgraphviz)
>>>>>Loading required package: graph
>>>>>Loading required package: grid


Error : .onLoad failed in loadNamespace() for 'Rgraphviz', details:
  call: value[[3L]](cond)
  error: unable to load shared object 'C:/Users/parisa/Documents/R/win-library/2.14/Rgraphviz/libs/x64/Rgraphviz.dll':
  LoadLibrary failure:  The specified module could not be found.


  Check that (1) graphviz is installed on your system; (2) the
  installed version of graphviz matches '2.20.3'; this is the version
  used to build this Rgraphviz package; (3) graphviz is accessible to
  R, e.g., the path to the graphviz 'bin' directory is in the system
  'PATH' variable.  See additional instructions in the 'README' file of
  the Rgraphviz 'source' distribution, available at

  http://bioconductor.org/packages/release/bioc/html/Rgraphviz.html

  Ask further questions on the Bioconductor mailing list

  http://bioconductor.org/docs/mailList.html


Error: package/namespace load failed for ‘Rgraphviz’

 

what's the libcdt-4.dll ?

how can i download and install it on my windows?

Thanks a lot


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