Hi All How can I adjust this path. My current path of Graphviz installation is: C:\Program Files (x86)\Graphviz2.20\bin and Rgraphviz is C:\R\library\Rgraphviz\libs\i386 Please help me. I am new to Rgraphviz. Ram "your Windows system 'PATH' variable needs to be adjusted once you've installed graphviz and before installing Rgraphviz" ---------- Forwarded message ---------- From: Martin Morgan <mtmorgan@fhcrc.org> Date: Mon, Jul 25, 2011 at 9:25 AM Subject: Re: [R] Rgraphviz installation problem To: "Ram H. Sharma" <sharma.ram.h@gmail.com> Cc: r-help@r-project.org On 07/25/2011 06:05 AM, Ram H. Sharma wrote: > Dear experts > > I installed Rgraphviz with the following command: > > > source("http://www.**bioconductor.org/biocLite.R<http: www.biocondu="" ctor.org="" bioclite.r=""> > ") > > biocLite("Rgraphviz") > > > 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: > > 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:/R/library/Rgraphviz/libs/**i386/Rgraphviz.dll': > 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 > > http://bioconductor.org/**packages/release/bioc/html/**Rgraphviz.h tml<http: bioconductor.org="" packages="" release="" bioc="" html="" rgraphviz.html=""> > additional details are at the url above. For instance, the specific version of graphviz required is http://www.graphviz.org/pub/**graphviz/stable/windows/** graphviz-2.20.3.1.msi<http: www.graphviz.org="" pub="" graphviz="" stable="" wind="" ows="" graphviz-2.20.3.1.msi=""> Ask further questions on the Bioconductor mailing list > > http://bioconductor.org/docs/**mailList.html<http: bioconductor.o="" rg="" docs="" maillist.html=""> > if you have more questions, ask on the Bioconductor mailing list. Martin > Error: package/namespace load failed for 'Rgraphviz' > > > Help me please. > > > -- Computational Biology Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N. PO Box 19024 Seattle, WA 98109 Location: M1-B861 Telephone: 206 667-2793 -- Ram H [[alternative HTML version deleted]]