error: unable to load installed packages just now

Question

When I tried to run the R console in Eclipse, I got this error:

....Please make sure that R package \'rj\' (1.1 or compatible) is installed...

Answer 1

Years later, I ended up on this question after searching for an error reported by R after I had unsuccessfully installed a package on that required shifting to Oracle's Java.

All I had to do to fix it was:

$ sudo R CMD javareconf