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I have been trying to load rJava onto my RStudio setup and it just won't work. It installs fine but doesn't load when I use the command library(rJava).

Here's what I've tried:-

  1. I have installed the latest version of jdk which is jdk 9.0.1.
  2. I have tried changing the JAVA_HOME environment variable to the jdk location.
  3. I have tried everything in this question as well but it didn't work.

I have attached the screenshot of the error message:

enter image description here

I am working on a MacBook.

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  • I hope JRE is there i.e. java -version prints the version. Plus I remember in mac rJava installation is tricky due to gcc version as well. Commented Jan 5, 2018 at 16:27
  • @abhiieor Yes, I get the version when I run the command Commented Jan 13, 2018 at 6:22

1 Answer 1

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There is a very specific sequence of steps that must be taken to get rJava to work on a Macbook, as documented in rJava Issues #86.

  1. Download and install Java from Oracle
  2. Uninstall any previously installed version of rJava
  3. Add JAVA_HOME to your .bashrc
  4. Close & restart terminal, R and RStudio sessions so they pick up the updated JAVA_HOME
  5. Use install.packages() to install rJava

See the URL link above for additional details on each step.

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2 Comments

This did not solve the problem either. I am still getting the same error
Also, I get a new error when I run the command sudo R CMD javareconf -n. It shows that it could not find jni.h.

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