Cannot load rJava because cannot load a shared library

Question

I have been struggling to load the rJava package in R.

I get the following messages

> library(rJava)
Error in inDL(x, as.logical(local), as.logic         


        

Answer 1

Following up on some of Dirk's sage advice:

• Your path should probably say C:\Program Files\Java\jre6\bin\ (remove "client").
• Your path should also have C:\Program Files\R\R-2.10.1\bin\. You don't need that explicit reference to the rJava libs. I would also then remove C:\Program Files\R from the path.
• Lastly, confirm that Java is accessible by either going to your command prompt and typing java -version, or from within R by typing system("java -version").
• If you install the SDK, then you will also want a system variable JAVA_HOME which in my case points to C:\Sun\SDK\.