R: rJava package install failing

Question

When installing rJava using the install.packages(\"rJava\") command I get the following error:

checking Java support in R... present:
interprete         


        

Answer 1

I was facing the same problem while using Windows 10. I have solved the problem using the following procedure

1. Download Java from https://java.com/en/download/windows-64bit.jsp for 64-bit windows\Install it
2. Download Java development kit from https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html for 64-bit windows\Install it
3. Then right click on “This PC” icon in desktop\Properties\Advanced system settings\Advanced\Environment Variables\Under System variables select Path\Click Edit\Click on New\Copy and paste paths “C:\Program Files\Java\jdk1.8.0_201\bin” and “C:\Program Files\Java\jre1.8.0_201\bin” (without quote) \OK\OK\OK

Note: jdk1.8.0_201 and jre1.8.0_201 will be changed depending on the version of Java development kit and Java

4. In Environment Variables window go to User variables for User\Click on New\Put Variable name as “JAVA_HOME” and Variable value as “C:\Program Files\Java\jdk1.8.0_201\bin”\Press OK

To check the installation, open CMD\Type javac\Press Enter and Type java\press enter It will show

In RStudio run

Sys.setenv(JAVA_HOME="C:\\Program Files\\Java\\jdk1.8.0_201")

Note: jdk1.8.0_201 will be changed depending on the version of Java development kit

Now you can install and load rJava package without any problem.