rJava installation fails on macOS 10.14

Question

After upgrading to MacOS Mojave (10.14.1), I\'m no longer able to install rJava for R version 3.5.1 with Java version \"1.8.0_102\" installed.

I tried

Answer 1

I ran into same issue, when i was trying to install "rJava" in my macOs (Mojave version).

Below steps i executed to resolve issue.

R version : 3.6.1

issue : configure: error: one or more Java tools are missing. *** JDK is incomplete! Please make sure you have a complete JDK. JRE is not sufficient.

solution : execute below command in your terminal

1. $ /usr/libexec/java_home -V

    Matching Java Virtual Machines (1):
        1.8.0_162, x86_64:  "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_221.jdk(your Java version)/Contents/Home

1. $ export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_221.jdk/Contents/Home

2. $ export PATH=$JAVA_HOME/bin:$PATH

3. $ R CMD javareconf

4. $ R --quiet -e 'install.packages("rJava", type="source", repos="http://cran.us.r-project.org")'