Hello all, I install R 2.7.0 + BioC 2.2 devel version on a Mac OS 10.4 server. I have problem in loading Rgraphviz package. Note that I have already downloaded and installed graphviz-2.12.dmg, and Rgraphviz was installed from source. Is it because I need a newer version of graphviz? I tried installed Graphviz 2.14. And I still got the same error message. Any ideas? Thanks a lot! Here is the error and session: > library(Rgraphviz) Loading required package: graph Error in dyn.load(file, DLLpath = DLLpath, ...) : unable to load shared library '/Library/Frameworks/R.framework/Resources/library/graph/libs/ppc/grap h.so': dlopen(/Library/Frameworks/R.framework/Resources/library/graph/libs/pp c/graph.so, 6): Library not loaded: /usr/lib/libiconv.2.dylib Referenced from: /Library/Frameworks/R.framework/Resources/library/graph/libs/ppc/graph .so Reason: Incompatible library version: graph.so requires version 7.0.0 or later, but libiconv.2.dylib provides version 5.0.0 Error: package 'graph' could not be loaded > sessionInfo() R version 2.7.0 beta (2008-04-13 r45283) powerpc-apple-darwin8.10.1 locale: C attached base packages: [1] stats graphics grDevices utils datasets methods base

It is actually the graph package that fails to load, and I think the error message is fairly explicit: You need at least version 7.0.0 of the iconv library, but installed on your sytem is version 5.0.0. Try updating libiconv and see if that helps. And don't ask me why the graph package needs character encoding conversion, I have no clue :) Cheers, Florian Luo Weijun schrieb: > Hello all, > I install R 2.7.0 + BioC 2.2 devel version on a Mac OS > 10.4 server. I have problem in loading Rgraphviz > package. Note that I have already downloaded and > installed graphviz-2.12.dmg, and Rgraphviz was > installed from source. Is it because I need a newer > version of graphviz? I tried installed Graphviz 2.14. > And I still got the same error message. Any ideas? > Thanks a lot! > Here is the error and session: > > >> library(Rgraphviz) >> > Loading required package: graph > Error in dyn.load(file, DLLpath = DLLpath, ...) : > unable to load shared library > '/Library/Frameworks/R.framework/Resources/library/graph/libs/ppc/gr aph.so': > > dlopen(/Library/Frameworks/R.framework/Resources/library/graph/libs/ ppc/graph.so, > 6): Library not loaded: /usr/lib/libiconv.2.dylib > Referenced from: > /Library/Frameworks/R.framework/Resources/library/graph/libs/ppc/gra ph.so > Reason: Incompatible library version: graph.so > requires version 7.0.0 or later, but libiconv.2.dylib > provides version 5.0.0 > Error: package 'graph' could not be loaded > >> sessionInfo() >> > R version 2.7.0 beta (2008-04-13 r45283) > powerpc-apple-darwin8.10.1 > > locale: > C > > attached base packages: > [1] stats graphics grDevices utils datasets > methods base > > _______________________________________________ > Bioconductor mailing list > Bioconductor at stat.math.ethz.ch > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor > -- Florian Hahne, PhD Computational Biology Program Division of Public Health Sciences Fred Hutchinson Cancer Research Center 1100 Fairview Ave. N, M2-B876 PO Box 19024 Seattle, Washington 98109-1024 206-667-3148 fhahne at fhcrc.org