rJava install error “JAVA_HOME cannot be determined from the Registry”

Question

I am trying to load the rJava using the command:

 library(rJava)

But I get the following error:

 Error : .onLoad failed i         


        

Answer 1

As mentioned in the r-statistics link cited above, you have to manually download the 64-bit version of Java. If not, then the 32-bit version will be installed.

So, if you have a 64-bit operating system, then ensure that both R and Java are using the 64-bit installs. Otherwise, this problem will persist.