[R] Rgraphviz installation problem
mtmorgan at fhcrc.org
Mon Jul 25 15:25:49 CEST 2011
On 07/25/2011 06:05 AM, Ram H. Sharma wrote:
> Dear experts
> I installed Rgraphviz with the following command:
> But had a problem when I tried to load it.
> This says that libcdt-4.dll is missing in your computer and the following
> message in R window:
> 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
> LoadLibrary failure: The specified module could not be found.
> Check that (1) graphviz is installed on your system; (2) the
you need to install graphviz, as well as Rgraphviz.
> installed version of graphviz matches '2.20.3'; this is the version
> used to build this Rgraphviz package; (3) graphviz is accessible to
graphviz has to be a specific version.
> R, e.g., the path to the graphviz 'bin' directory is in the system
> 'PATH' variable. See additional instructions in the 'README' file of
your Windows system 'PATH' variable needs to be adjusted once you've
installed graphviz and before installing Rgraphviz
> the Rgraphviz 'source' distribution, available at
additional details are at the url above. For instance, the specific
version of graphviz required is
> Ask further questions on the Bioconductor mailing list
if you have more questions, ask on the Bioconductor mailing list.
> Error: package/namespace load failed for 'Rgraphviz'
> Help me please.
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