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1. INSTALLING RJAVA IN R STUDIO FIRST TIME INSTALL
2. INSTALLING RJAVA IN R STUDIO FIRST TIME 64 BIT
3. INSTALLING RJAVA IN R STUDIO FIRST TIME WINDOWS 10
4. INSTALLING RJAVA IN R STUDIO FIRST TIME DOWNLOAD

Now you can install and load rJava package without any problem. Note: jdk1.8.0_201 will be changed depending on the version of Java development kit Don’t worry about jdk-10.0.1 as this might change for future releases. Set your JAVAHOME environment with Sys.setenv(JAVAHOME'C:/Program Files/Java/jdk-10.0.1/') so that it points to your specific (64-bit in my case) folder that contains the jdk. In RStudio run Sys.setenv(JAVA_HOME="C:\\Program Files\\Java\\jdk1.8.0_201") Install rJava with install.packages('rJava'). To check the installation, open CMD\Type javac\Press Enter and 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.Note: jdk1.8.0_201 and jre1.8.0_201 will be changed depending on the version of Java development kit and Java 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.

INSTALLING RJAVA IN R STUDIO FIRST TIME DOWNLOAD

What I failed to appreciate initially is that installing packages using the Ubuntu apt-get method is fundamentally different than just loading the same package using install.packages() inside of R. I tried Dirk's recommendation to use apt-get to install the rJava package. I recently ran into the same issue on a new Ubuntu install. I had initially solved this by editing my Java paths, as illustrated in the answer I posted below. It's been a few months since I had this problem. The other thing I read was to run sudo R CMD javareconf which runs quite happily with no errors. When Googling around for the error I see that others are having the same issue but not finding a solution other than "install the whole JDK, not just the JRE" which I have done. Java(TM) SE Runtime Environment (build 1.6.0_20-b02) I have the Java JDK installed and java -version returns the following: $ java -version You may need to use non-standard compiler flags or a different compiler in order to fix this.ĮRROR: configuration failed for package ‘rJava’ configure: error: One or more JNI types differ from the corresponding native type. Don’t worry about jdk-10.0.1 as this might change for future releases.When installing rJava using the install.packages("rJava") command I get the following error: checking Java support in R.

Set your JAVA_HOME environment with Sys.setenv(JAVA_HOME="C:/Program Files/Java/jdk-10.0.1/") so that it points to your specific (64-bit in my case) folder that contains the jdk. Install rJava with install.packages("rJava"). Conversely, if you installed 64-bit then everything should be installed in C:/Program Files/Java/. If you installed 32-bit Java then everything should be saved in C:/Program Files (x86)/Java/. For 64-bit I had to download the Windows version from here.

INSTALLING RJAVA IN R STUDIO FIRST TIME 64 BIT

I had 64 bit so I downloaded the Offline 64-bit version from here.ĭownload Java JDK for 32/64 bit. R and Java must have the same memory signature, either 32 or 64 bit. Check Platform.ĭownload the specific 32/64 bit of Java. Post here the steps that made it work in case anyone is interested (that is, future me).Ĭheck whether R is 32/64 bit with sessionInfo().

INSTALLING RJAVA IN R STUDIO FIRST TIME WINDOWS 10

Struggled for about two hours to install rJava on my Windows 10 machine.