Hello, I'm getting the same error others have gotten with Rgraphviz (v 1.27.0), but the previously posted solutions don't seem to be working: > library(Rgraphviz) Error : .onLoad failed in loadNamespace() for 'Rgraphviz', details: call: value[[3L]](cond) error: unable to load shared object 'C:/Users/ckingsley.TGEN/Documents/R/win- library/2.13/Rgraphviz/libs/x64/Rgraphviz.dll': LoadLibrary failure: %1 is not a valid Win32 application. Check that (1) graphviz is installed on your system; (2) the installed version of graphviz matches '2.20.3'; this is the version used to build this Rgraphviz package; (3) graphviz is accessible to R, e.g., the path to the graphviz 'bin' directory is in the system 'PATH' variable. See additional instructions in the 'README' file of the Rgraphviz 'source' distribution, available at http://bioconductor.org/packages/release/bioc/html/Rgraphviz.html Ask further questions on the Bioconductor mailing list http://bioconductor.org/docs/mailList.html Error: package/namespace load failed for 'Rgraphviz' I have installed graphviz 2.20.3.1 and the PATH environmental variable contains the path to the bin directory: > grep("Graphviz", strsplit(Sys.getenv("PATH"), ";")[[1]], value=T) [1] "C:\\Program Files (x86)\\Graphviz2.20\\bin<file: \\graphviz2.20\bin="">" > list.files("C:\\Program Files (x86)\\Graphviz2.20\\bin<file: \\graphviz2.20\bin="">") [1] "acyclic.exe" "bcomps.exe" "ccomps.exe" "circo.exe" "comdlg32.ocx" "diffimg.exe" "dijkstra.exe" [8] "dot.exe" "dot2gxl.exe" "dotty.exe" "fc-cache.exe" "fc- cat.exe" "fc-list.exe" "fc- match.exe" [15] "fdp.exe" "gc.exe" "gv2gxl.exe" "gvcolor.exe" "GVedit.exe" "gvpack.exe" "gvpr.exe" [22] "GVUI.exe" "gxl2dot.exe" "gxl2gv.exe" "iconv.dll" "intl.dll" "jpeg62.dll" "lefty.exe" [29] "libcairo-2.dll" "libcdt-4.dll" "libcgraph-4.dll" "libexpat.dll" "libfontconfig-1.dll" "libfreetype-6.dll" "libgdk_pixbuf-2.0-0.dll" [36] "libglib-2.0-0.dll" "libgmodule-2.0-0.dll" "libgobject-2.0-0.dll" "libgraph-4.dll" "libgvc-4.dll" "libgvplugin_core-5.dll" "libgvplugin_dot_layout-5.dll" [43] "libgvplugin_gd-5.dll" "libgvplugin_neato_layout-5.dll" "libgvplugin_pango-5.dll" "libltdl-3.dll" "libpango-1.0-0.dll" "libpangocairo-1.0-0.dll" "libpangoft2-1.0-0.dll" [50] "libpangowin32-1.0-0.dll" "libpathplan-4.dll" "libpng12.dll" "libxml2.dll" "lneato.exe" "mm2gv.exe" "neato.exe" [57] "nop.exe" "props.txt" "prune.exe" "sccmap.exe" "settings.ini" "tred.exe" "twopi.exe" [64] "unflatten.exe" "zlib1.dll" And the Rgraphviz.dll is present in the correct directory: > list.files("C:/Users/ckingsley.TGEN/Documents/R/win- library/2.13/Rgraphviz/libs/x64/") [1] "Rgraphviz.dll" I'm running 64 bit R 2.13.0 on Windows 7 Professional x64. Thanks in advance. __________________________________________ Christopher Kingsley, PhD Research Assistant Professor Diabetes, Cardiovascular & Metabolic Disease Division TGen, The Translational Genomics Research Institute [[alternative HTML version deleted]]

On Mon, Sep 12, 2011 at 5:10 PM, <ckingsley at="" tgen.org=""> wrote: > Hello, > > I'm getting the same error others have gotten with Rgraphviz (v 1.27.0), but the previously posted solutions don't seem to be working: > >> library(Rgraphviz) > Error : .onLoad failed in loadNamespace() for 'Rgraphviz', details: > ?call: value[[3L]](cond) > ?error: unable to load shared object 'C:/Users/ckingsley.TGEN/Documents/R/win- library/2.13/Rgraphviz/libs/x64/Rgraphviz.dll': > ?LoadLibrary failure: ?%1 is not a valid Win32 application. > > > ?Check that (1) graphviz is installed on your system; (2) the installed version of graphviz matches '2.20.3'; this is the version used to build this Rgraphviz package; (3) graphviz is accessible to R, e.g., the > ?path to the graphviz 'bin' directory is in the system 'PATH' variable. ?See additional instructions in the 'README' file of the Rgraphviz 'source' distribution, available at > > ?http://bioconductor.org/packages/release/bioc/html/Rgraphviz.html > > ?Ask further questions on the Bioconductor mailing list > > ?http://bioconductor.org/docs/mailList.html > > > Error: package/namespace load failed for 'Rgraphviz' > > > > I have installed graphviz 2.20.3.1 and the PATH environmental variable contains the path to the bin directory: > >> grep("Graphviz", strsplit(Sys.getenv("PATH"), ";")[[1]], value=T) > [1] "C:\\Program Files (x86)\\Graphviz2.20\\bin<file: \\graphviz2.20\bin="">" This path item looks kind of wacky to me. What happens if you type neato -V at the command line? > >> list.files("C:\\Program Files (x86)\\Graphviz2.20\\bin<file: \\graphviz2.20\bin="">") > [1] "acyclic.exe" ? ? ? ? ? ? ? ? ? ?"bcomps.exe" ? ? ? ? ? ? ? ? ? ? "ccomps.exe" ? ? ? ? ? ? ? ? ? ? "circo.exe" ? ? ? ? ? ? ? ? ? ? ?"comdlg32.ocx" ? ? ? ? ? ? ? ? ? "diffimg.exe" ? ? ? ? ? ? ? ? ? ?"dijkstra.exe" > ?[8] "dot.exe" ? ? ? ? ? ? ? ? ? ? ? ?"dot2gxl.exe" ? ? ? ? ? ? ? ? ? ?"dotty.exe" ? ? ? ? ? ? ? ? ? ? ?"fc-cache.exe" ? ? ? ? ? ? ? ? ? "fc-cat.exe" ? ? ? ? ? ? ? ? ? ? "fc-list.exe" ? ? ? ? ? ? ? ? ? ?"fc- match.exe" > [15] "fdp.exe" ? ? ? ? ? ? ? ? ? ? ? ?"gc.exe" ? ? ? ? ? ? ? ? ? ? ? ? "gv2gxl.exe" ? ? ? ? ? ? ? ? ? ? "gvcolor.exe" ? ? ? ? ? ? ? ? ? ?"GVedit.exe" ? ? ? ? ? ? ? ? ? ? "gvpack.exe" ? ? ? ? ? ? ? ? ? ? "gvpr.exe" > [22] "GVUI.exe" ? ? ? ? ? ? ? ? ? ? ? "gxl2dot.exe" ? ? ? ? ? ? ? ? ? ?"gxl2gv.exe" ? ? ? ? ? ? ? ? ? ? "iconv.dll" ? ? ? ? ? ? ? ? ? ? ?"intl.dll" ? ? ? ? ? ? ? ? ? ? ? "jpeg62.dll" ? ? ? ? ? ? ? ? ? ? "lefty.exe" > [29] "libcairo-2.dll" ? ? ? ? ? ? ? ? "libcdt-4.dll" ? ? ? ? ? ? ? ? ? "libcgraph-4.dll" ? ? ? ? ? ? ? ?"libexpat.dll" ? ? ? ? ? ? ? ? ? "libfontconfig-1.dll" ? ? ? ? ? ?"libfreetype-6.dll" ? ? ? ? ? ? ?"libgdk_pixbuf-2.0-0.dll" > [36] "libglib-2.0-0.dll" ? ? ? ? ? ? ?"libgmodule-2.0-0.dll" ? ? ? ? ? "libgobject-2.0-0.dll" ? ? ? ? ? "libgraph-4.dll" ? ? ? ? ? ? ? ? "libgvc-4.dll" ? ? ? ? ? ? ? ? ? "libgvplugin_core-5.dll" ? ? ? ? "libgvplugin_dot_layout-5.dll" > [43] "libgvplugin_gd-5.dll" ? ? ? ? ? "libgvplugin_neato_layout-5.dll" "libgvplugin_pango-5.dll" ? ? ? ?"libltdl-3.dll" ? ? ? ? ? ? ? ? ?"libpango-1.0-0.dll" ? ? ? ? ? ? "libpangocairo-1.0-0.dll" ? ? ? ?"libpangoft2-1.0-0.dll" > [50] "libpangowin32-1.0-0.dll" ? ? ? ?"libpathplan-4.dll" ? ? ? ? ? ? ?"libpng12.dll" ? ? ? ? ? ? ? ? ? "libxml2.dll" ? ? ? ? ? ? ? ? ? ?"lneato.exe" ? ? ? ? ? ? ? ? ? ? "mm2gv.exe" ? ? ? ? ? ? ? ? ? ? ?"neato.exe" > [57] "nop.exe" ? ? ? ? ? ? ? ? ? ? ? ?"props.txt" ? ? ? ? ? ? ? ? ? ? ?"prune.exe" ? ? ? ? ? ? ? ? ? ? ?"sccmap.exe" ? ? ? ? ? ? ? ? ? ? "settings.ini" ? ? ? ? ? ? ? ? ? "tred.exe" ? ? ? ? ? ? ? ? ? ? ? "twopi.exe" > [64] "unflatten.exe" ? ? ? ? ? ? ? ? ?"zlib1.dll" > > And the Rgraphviz.dll is present in the correct directory: > >> list.files("C:/Users/ckingsley.TGEN/Documents/R/win- library/2.13/Rgraphviz/libs/x64/") > [1] "Rgraphviz.dll" > > I'm running 64 bit R 2.13.0 on Windows 7 Professional x64. For 64-bit windows try grabbing the prebuilt binary of graphviz referred to here: https://stat.ethz.ch/pipermail/bioconductor/2010-October/036011.html Note that this does not include all the executables but it does have the libraries that Rgraphviz needs to run against. Dan > > Thanks in advance. > > __________________________________________ > > Christopher Kingsley, PhD > Research Assistant Professor > Diabetes, Cardiovascular & Metabolic Disease Division > TGen, The Translational Genomics Research Institute > > > ? ? ? ?[[alternative HTML version deleted]] > > _______________________________________________ > Bioconductor mailing list > Bioconductor at r-project.org > https://stat.ethz.ch/mailman/listinfo/bioconductor > Search the archives: http://news.gmane.org/gmane.science.biology.informatics.conductor >