[BioC] Rgraphviz

[Jan T. Kim]

Hi Janet,

On Thu, Jul 08, 2010 at 11:55:36AM +0100, Janet Higgins (JIC) wrote:
> Hi
> 
> I am having problems installing and loading Rgraphviz.
> 
> I have tried installing it in Windows with R versions  2.10.1 and 2.11.0, it appears to install ok but when I load it I get the following error
> 
> Error : .onLoad failed in loadNamespace() for 'Rgraphviz', details:
>   call: value[[3L]](cond)
>   error: unable to load shared library 'C:/PROGRA~1/R/R-211~1.0/library/Rgraphviz/libs/Rgraphviz.dll':
>   LoadLibrary failure:  The specified module could not be found. 
> 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. 
> 
> I have also tried installing it running R version 2.10.0 in Unix and I get the following error
> 
> configure: No --with-graphviz option was specified. Trying to find Graphviz using other methods.
> checking for pkg-config... /usr/bin/pkg-config
> Package libgvc was not found in the pkg-config search path.
> Perhaps you should add the directory containing `libgvc.pc'
> to the PKG_CONFIG_PATH environment variable
> No package 'libgvc' found
> configure: pkg-config was not able to find the Graphviz library libgvc. This either indicates that Graphviz is old or that something is wrong. Verify Graphviz is installed and that PKG_CONFIG_PATH is correct.
> checking for dotneato-config... no
> configure: dotneato-config not found in PATH.
> configure: Using default directory /usr/local, consider specifiying --with-graphviz
> configure: error: /usr/local/bin/dot not found.  Check Graphviz installation.
> ERROR: configuration failed for package 'Rgraphviz'

I've got Rgraphviz running on my Linux boxes. Perhaps all that's needed
that's needed is to install graphviz incl. development option (that
depends on the Linux distribution you use, on my CentOS based box they
seem to be graphviz.x86_64 and graphviz-devel.x86_64). Possibly you'll
need to re-install Rgraphviz after that.

Best regards, Jan
-- 
 +- Jan T. Kim -------------------------------------------------------+
 |             email: j.kim at uea.ac.uk                                 |
 |             WWW:   http://www.cmp.uea.ac.uk/people/jtk             |
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