I recently upgraded to R-2.0.0. Using Rgraphviz, I get the following error (MacOS, graphviz 1.12): > library(Rgraphviz) # same error using devel and release versions > g1 A graph with directed edges Number of Nodes = 27 Number of Edges = 31 > plot(g1) Error in .local(x, y, ...) : couldn't find function "getRadiusDiv" > install.packages2('Rgraphviz',develOK=T) ** R ** inst ** save image Loading required package: cluster Loading required package: Ruuid Loading required package: Biobase Loading required package: tools Welcome to Bioconductor Vignettes contain introductory material. To view, simply type: openVignette() For details on reading vignettes, see the openVignette help page. Creating a new generic function for "lines" in "Rgraphviz" Creating a new generic function for "plot" in "Rgraphviz" Warning messages: 1: Undefined slot classes in definition of "Ragraph": boundBox (class " boundingBox ") in: .completeClassSlots(ClassDef, where) 2: Undefined slot classes in definition of "boundingBox": botLeft (class " xyPoint "), upRight (class " xyPoint ") in: .completeClassSlots(ClassDef, where) 3: Undefined slot classes in definition of "AgNode": center (class " xyPoint "), txtLabel (class " AgTextLabel ") in: .completeClassSlots(ClassDef, where) 4: Undefined slot classes in definition of "AgEdge": sp (class " xyPoint "), ep (class " xyPoint "), txtLabel (class " AgTextLabel ") in: .completeClassSlots(ClassDef, where) .... * DONE (Rgraphviz) [1] "Installation complete" From URL: http://www.bioconductor.org/repository/devel/package/Source Rgraphviz version 1.4.23 Package: Rgraphviz Title: Provides plotting capabilities for R graph objects Description: Interfaces R with the AT&T GraphViz library to provide the ability for plotting R graph objects from the graph package Version: 1.4.23 Author: Jeff Gentry <jgentry@jimmy.harvard.edu> Maintainer: Jeff Gentry <jgentry@jimmy.harvard.edu> Depends: R (>= 1.9.0), graph Suggests: Biobase SystemRequirements: Graphviz version >= 1.12 License: LGPL Packaged: Mon Oct 18 20:50:01 2004; madman Built: R 2.0.0; powerpc-apple-darwin6.8; 2004-10-19 14:06:25; unix >