Hello all. Steven's approach didn't work for me. I'm running 64 bit R
> R.Version() $platform [1] "x86_64-pc-mingw32" $arch [1] "x86_64" $os [1] "mingw32" $system [1] "x86_64, mingw32" and downloaded and installed the 64 bit version of Java directly from Oracle. I then tried to load the rJava library and got Error : .onLoad failed in loadNamespace() for 'rJava', details: call: inDL(x, as.logical(local), as.logical(now), ...) error: unable to load shared object 'D:/Users/David Stevens/Documents/R/win-library/2.15/rJava/libs/x64/rJava.dll': LoadLibrary failure: %1 is not a valid Win32 application. Error: package/namespace load failed for 'rJava' I searched my computer for rJava.dll and found several (> 10) copies scattered around. d:\Oneida\CalWaipara>dir /s \rjava.dll ... Directory of d:\Program Files\R\R-2.13.1\library\rJava\libs\i386 06/24/2011 10:38 AM 80,384 rJava.dll 1 File(s) 80,384 bytes Directory of d:\Program Files\R\R-2.13.1\library\rJava\libs\x64 06/24/2011 10:39 AM 55,296 rJava.dll 1 File(s) 55,296 bytes Directory of d:\Program Files\R\R-2.14.1\library\rJava\libs\i386 12/29/2011 11:40 PM 81,408 rJava.dll 1 File(s) 81,408 bytes Directory of d:\Program Files\R\R-2.14.1\library\rJava\libs\x64 12/29/2011 11:40 PM 55,296 rJava.dll 1 File(s) 55,296 bytes Directory of d:\Program Files\R\R-2.15.0\library\rJava\libs\i386 12/29/2011 11:40 PM 81,408 rJava.dll 1 File(s) 81,408 bytes Directory of d:\Program Files\R\R-2.15.0\library\rJava\libs\x64 12/29/2011 11:40 PM 55,296 rJava.dll 1 File(s) 55,296 bytes Directory of d:\Program Files\R\R-2.15.1\library\rJava\libs\i386 08/29/2012 01:12 PM 57,856 rJava.dll 1 File(s) 57,856 bytes Directory of d:\Program Files\R\R-2.15.1\library\rJava\libs\x64 08/29/2012 01:12 PM 58,368 rJava.dll 1 File(s) 58,368 bytes Directory of d:\Users\David Stevens\Documents\R\win-library\2.13\rJava\libs\i386 07/06/2011 10:06 AM 80,384 rJava.dll 1 File(s) 80,384 bytes Directory of d:\Users\David Stevens\Documents\R\win-library\2.13\rJava\libs\x64 07/06/2011 10:06 AM 55,296 rJava.dll 1 File(s) 55,296 bytes Directory of d:\Users\David Stevens\Documents\R\win-library\2.15\rJava\libs\i386 10/23/2012 12:30 PM 57,856 rJava.dll 1 File(s) 57,856 bytes Directory of d:\Users\David Stevens\Documents\R\win-library\2.15\rJava\libs\x64 10/23/2012 12:30 PM 58,368 rJava.dll Is there something else I can try? Short of erasing and reinstalling everything? Regards David Stevens On 10/16/2012 9:19 AM, Steven Ranney wrote: > Thanks for the information, Simon. > > I had both the 64-bit version of R and the 64-bit Windows 7, but not the > 64-bit version of Java. > > Now that I've downloaded the proper version of Java, the problem has been > solved. > > Thanks - > > SR > Steven H. Ranney > > > > On Mon, Oct 15, 2012 at 5:12 PM, Simon Knapp <sleepingw...@gmail.com> wrote: > >> My guess would be that your running the 32 bit version of R - and >> rJava is looking for the 64 bit dll. I'd suggest starting the 64 bit >> version of R explicitly (e.g. the 64 bit version of Rgui lives at >> <R_HOME>/bin/x64/Rgui.exe, whereas the 32 bit version lives at >> <R_HOME>/bin/i386/Rgui.exe). >> >> On Tue, Oct 16, 2012 at 2:37 AM, Steven Ranney <steven.ran...@gmail.com> >> wrote: >>> All -- >>> >>> >>> >>> I'm having a problem with the rJava package. I can download it to my >>> machine (Win 7 64-bit) but when I try to load the package into R (2.15.1, >>> 64-bit version), I get the following error: >>> >>> >>>> require(rJava) >>> Loading required package: rJava >>> >>> Error : .onLoad failed in loadNamespace() for 'rJava', details: >>> >>> call: inDL(x, as.logical(local), as.logical(now), ...) >>> >>> error: unable to load shared object >>> 'C:/Users/sranney/Documents/R/win-library/2.15/rJava/libs/x64/rJava.dll': >>> >>> LoadLibrary failure: %1 is not a valid Win32 application. >>> >>> >>> I have verified that the file R is looking for is in the appropriate >> place, >>> but I continue to get the error. I have tried to download rJava from >>> another source, but still get the error. >>> >>> >>> I have not been able to find another user with this same issue. >>> >>> >>> Thanks for your help -- >>> >>> >>> Steven Ranney >>> >>> [[alternative HTML version deleted]] >>> >>> >>> ______________________________________________ >>> R-help@r-project.org mailing list >>> https://stat.ethz.ch/mailman/listinfo/r-help >>> PLEASE do read the posting guide >> http://www.R-project.org/posting-guide.html >>> and provide commented, minimal, self-contained, reproducible code. >>> > [[alternative HTML version deleted]] > > > > ______________________________________________ > R-help@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. -- David K Stevens, P.E., Ph.D., Professor Civil and Environmental Engineering Utah Water Research Laboratory 8200 Old Main Hill Logan, UT 84322-8200 435 797 3229 - voice 435 797 1363 - fax david.stev...@usu.edu [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.