So, I installed RWeka on my MacBook OS X El Capitan Version 10.11.6, however when I run
library(RWeka)
I get the error
Error : .onLoad failed in loadNamespace() for 'RWeka', details:
call: .jnew("weka/core/WekaPackageClassLoaderManager")
error: java.lang.UnsupportedClassVersionError:weka/core/WekaPackageClassLoaderManager : Unsupported major.minor version 51.0
Error: package or namespace load failed for 'RWeka'
My R version is
R.Version()
$platform
[1] "x86_64-apple-darwin13.4.0"
$arch
[1] "x86_64"
$os
[1] "darwin13.4.0"
$system
[1] "x86_64, darwin13.4.0"
$status
[1] ""
$major
[1] "3"
$minor
[1] "3.2"
$year
[1] "2016"
$month
[1] "10"
$day
[1] "31"
$`svn rev`
[1] "71607"
$language
[1] "R"
$version.string
[1] "R version 3.3.2 (2016-10-31)"
$nickname
[1] "Sincere Pumpkin Patch"
When I run in the Mac Terminal:
java -version
java version "1.8.0_121"
Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)
I also tried
sudo rm /usr/bin/java
sudo ln -s /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/java /usr/bin
Which results in
whereis java
/usr/bin/java
Can someone help me to load RWeka properly?
I have installed Weka on my computer. I have installed 'rJava' as well in R Studio. I don't understand the problem.
I tried out a lot of things, even installed 1.6, but my final output in latest version java Terminal was:
export JAVA_HOME=/usr/lib/jvm/java-6-sun/jre
export PATH=$PATH:$JAVA_HOME/bin
sudo ln -f -s $(/usr/libexec/java_home)/jre/lib/server/libjvm.dylib /usr/local/lib
It took me 4 hour to solve the problem. It seems that after a mac system version update the java version preferences option was removed.
