rJava load error in RStudio/R after “upgrading” to OSX Yosemite

Question

I recently \"upgraded\" from OSX Mountain Lion to Yosemite and from R 3.1.3 to 3.2. Immediately after the upgrade, when I opened R or RStudio I got a pop-up message saying t

Answer 1

I noticed that 'rJava' is pretty strict about JDK version while loading in Rstudio.
In my case (Mac OS. 10.14.6 - Mojave) I had installed jdk-13 which was tested against jdk-11.
I have linked my JDK version to a non-existent directory that was assumed to be valid by Rstudio (JDK 11):

sudo ln -sf /Library/Java/JavaVirtualMachines/jdk-13.jdk/ /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk

and suprisingly it works like a charm...
BTW., there was no problem to run 'rJava' following the previous instructions in native R.

Answer 2

You can load the libjvm.dylib explictly, by run like

dyn.load('/Library/Java/JavaVirtualMachines/jdk1.8.0_66.jdk/Contents/Home/jre/lib/server/libjvm.dylib')
library(rJava)

Answer 3

You can change the reference in R by using the following command:

sudo install_name_tool -change /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home/lib/server/libjvm.dylib /Library/Java/JavaVirtualMachines/jdk-13.0.1.jdk/Contents/Home/lib/server/libjvm.dylib /Library/Frameworks/R.framework/Versions/3.6/Resources/library/rJava/libs/rJava.so

Answer 4

Following command works:

sudo ln -s $(/usr/libexec/java_home)/jre/lib/server/libjvm.dylib /usr/local/lib

After that, in RStudio, loading rJava works through loading of the "xlsx" package.

library("xlsx")

P.S. #1 Environment: Mac OS X El Capitan 10.11.3+ with RStudio 0.99.491+ and R 3.2.3+. (I've now tested this also on macOS Sierra (10.12) and R.3.3.1.)

P.S. #2 I find that openxlsx is much faster and doesn't rely on Java to work, so I'm now using that package. Hope that helps others.

Answer 5

This is how I configured it working properly on two Macs running Mac OS X El Capitan (10.11.6):

1. Uninstall 'rJava' by issuing the following commands in a terminal window:

   Rscript -e 'remove.packages("rJava")'
   sudo Rscript -e 'remove.packages("rJava")'
   

2. Download and install the Java software from Oracle: https://www.java.com/en/download/mac_download.jsp

3. Add the following lines to /Users/<userid>/.bashrc using your favorite editor:

   # Set JAVA_HOME so rJava package can find it
   export JAVA_HOME=$(/usr/libexec/java_home -v 1.8)/jre
   

4. Close and restart any terminal, R, and RStudio windows (to pick up the changes to .bashrc).

5. Run the following command in a Terminal window:

   sudo ln -sf $(/usr/libexec/java_home)/jre/lib/server/libjvm.dylib /usr/local/lib
   

6. Run the following command in a Terminal window:

   sudo Rscript -e 'install.packages("rJava", repos="http://rforge.net", type="source")'
   

Answer 6

Here what worked for me on MAC:

1. in your ~/.profile or ~/.bashrc add this line: %export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_102.jdk/Contents/Home

   1.1 % source .profile (or % source .bashrc)

2. % sudo ln -s $(/usr/libexec/java_home)/jre/lib/server/libjvm.dylib /usr/local/lib
3. remove.packages(rJava)
4. remove.packages(Rweka)
5. From the terminal enter this command: %sudo R CMD javareconf
6. install.packages("rJava", dependencies = TRUE, type = "source")
7. install.packages("rJava", dependencies = TRUE, type = "source")
8. Load your library("rJava", "RWeka")

Best of luck.