[BioC] Rgraphviz

[Janet Higgins (JIC)]

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'

>From searching the various forum a lot of people appear to have had problems installing Rgraphviz but I cannot find many solutions.
Can anyone help?

Thanks
Janet


Dr Janet Higgins
Dept of Crop Genetics
John Innes Centre
Norwich Research Park
Colney
Norwich
NR4 7UH
UK