rJava works with 32-bit but not 64

On 2/4/2013 3:55 PM, Simon Urbanek wrote:
On Feb 4, 2013, at 7:14 PM, Spencer Graves wrote:

On 2/4/2013 7:03 AM, Simon Urbanek wrote:
On Feb 4, 2013, at 10:27 AM, Spencer Graves wrote:

On 2/4/2013 5:22 AM, Milan Bouchet-Valat wrote:
Le lundi 04 f?vrier 2013 ? 08:19 -0400, Simon Urbanek a ?crit :
On Feb 4, 2013, at 6:33 AM, Spencer Graves wrote:

On 2/3/2013 11:21 PM, Pascal Oettli wrote:
Hello,

Do you have a 64-bit version of Java?

rJava says to you:
call: stop("No CurrentVersion entry in '", key, "'! Try
re-installing Java and make sure R and Java have matching
architectures.")
Simon, have you noticed there seem to be a bug in rJava about the
missing 'key' variable? The error message would be (slightly) cleaner if
the stop() call succeeded, wouldn't it? ;-)
     A subtle bug which only appears with the 64-bit but not the 32-bit version ... ?

Just a subtle bug in the error message if there is no Java installed (has nothing to do with the architecture). Now fixed.
     Great.  How can I get the new version?  [If it were on R-Forge, I could get it via install.packages("rJava", repos="http://R-Forge.R-project.org").]

You got it almost right - it's slightly shorter than that:

install.packages("rJava",, "http://RForge.net")

but you know that if you ever looked at the rJava page ;)

Thanks. Unfortunately, I still have problems with 64-bit rJava: As noted below, after your "install.packages", I get an error on library(rJava) [which works fine for me with 32-bit R]. Thanks, Spencer

Obviously. But thanks for testing the error message, you have shown that it works now (this was what we were talking about - maybe you misread the e-mail trail?).

If you actually want to use rJava in 64-bit R you'll have to install 64-bit Java as several of us mentioned before.

Cheers,
Simon

install.packages("rJava",, "http://RForge.net")
trying URL 'http://RForge.net/bin/windows/contrib/2.15/rJava_0.9-4.zip'
Content type 'application/zip' length 761030 bytes (743 Kb)
opened URL
downloaded 743 Kb

The downloaded binary packages are in
C:\Users\sgraves\AppData\Local\Temp\Rtmp8wP4ap\downloaded_packages
library(rJava)
Error : .onLoad failed in loadNamespace() for 'rJava', details:
call: fun(libname, pkgname)
error: No CurrentVersion entry in Software/JavaSoft registry! Try re-installing Java and make sure R and Java have matching architectures.
Error: package/namespace load failed for ?rJava?
sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats graphics grDevices utils datasets methods base

loaded via a namespace (and not attached):
[1] tools_2.15.2

Cheers,
Simon

     Thanks,
     Spencer
Cheers,
Simon

     I agree:  Thanks very much for your work.  Spencer

Thanks for your work

     I think I probably have a 32-bit version and not a 64-bit,
because it works with 32-bit R but not 64-bit R.
     Is it feasible to have both installed in a way that allows the
each version of R to select its own version of Java?

Yes, that is the default. 32-bit R will only see 32-bit Java and vice
versa, because Windows separates 32-bit and 64-bit registries.

 A comment on stackoverflow suggests that may not be easy
(http://stackoverflow.com/questions/5272216/is-it-possible-to-install-both-32bit-and-64bit-java-on-windows-7).
Ehm, it says "Yes, it is absolutely no problem. " -- which part of it
suggests it's not easy? SO is a good source of rumors, seldom facts --
but in this case it's not too far from the truth.

Cheers,
Simon

     Thanks,
     Spencer

Regards,
Pascal

Le 04/02/2013 14:27, Spencer Graves a ?crit :
Hello:

      rJava works for me under 32-bit but under not 64-bit R; see below.

      Suggestions?
      Thanks,
      Spencer

library(rJava)
Error : .onLoad failed in loadNamespace() for 'rJava', details:
  call: stop("No CurrentVersion entry in '", key, "'! Try
re-installing
Java and make sure R and Java have matching architectures.")
  error: object 'key' not found
Error: package/namespace load failed for 'rJava'
sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: x86_64-w64-mingw32/x64 (64-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods base
##########################

library(rJava)
sessionInfo()
R version 2.15.2 (2012-10-26)
Platform: i386-w64-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods base

other attached packages:
[1] rJava_0.9-3

______________________________________________
R-help at 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.

-- 
Spencer Graves, PE, PhD
President and Chief Technology Officer
Structure Inspection and Monitoring, Inc.
751 Emerson Ct.
San Jos?, CA 95126
ph:  408-655-4567
web:  www.structuremonitoring.com

rJava works with 32-bit but not 64

Thread (4 messages)