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

Install 64 bit Java from https://java.com/en/download/manual.jsp.
Then in windows cmd run
setx PATH "C:\Program Files\Java\jre1.8.0_211\bin\server;%PATH%"
(make sure your path is correct).

Then in RStudio run
Sys.setenv(JAVA_HOME="")

Now, you should be able to run rJava!!