When running [1] "R version 2.15.1 (2012-06-22)" "x86_64-pc-mingw32",
rJava fails. I have installed both the 32-bit and 64-bit versions of
Java 7 update 9.
> 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’
>
It appears that rJava was not seeing the x64 Java. For clarity, I
installed the 32-bit java library second, and I imagined this might be
the problem. The Java installer told me that it was already present, and
the x64 library appeared to be working with the 64-bit IE9 browser
Indeed, reinstalling Java x64, the rJava package iloaded fine with the
library(rJava) command in 64-bit R. rJava could STILL be loaded with
library(rJava) within x86 R.
My question is, should the order of Java installation affect the ability
of rJava to load under 64-bit R? Are there environmental variables or
registry settings that should be checked in such cases or is it
literally necessary to do a complete reinstall?
Rob
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