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

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//.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")'