One of the most frustrating items that I’ve been trying to install on my EC2 instance is rJava. Its an R package that lots of other packages have as a dependency, including glmulti and MongoDB.
I’ve spent a fair few hours trying to get this installed, constantly receiving the error message:
configure: error: Java Development Kit (JDK) is missing or not registered in R Make sure R is configured with full Java support (including JDK). Run R CMD javareconf as root to add Java support to R.
I dutifully ran the recommended line of code (several times, as root, as ec2-user, etc. etc. etc.)
About half way through this journey I checked with another EC2 instance with R installed and received the same error, which at least reassured me that I had not completely screwed up my R installation, so kept persevering.
My main line of inquiry was checking that the JDK was installed properly – from my limited Linux experience it looked OK, but I also came across some forum posts
Cutting a long story short, I finally came across this post and found this beautiful line of code, which hopefully will sort out your problems (or at least check off the problem that I had):
yum install java-1.6.0-openjdk-devel
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