* installing *source* package ‘POPInf’ ...
** using staged installation
** R
** byte-compile and prepare package for lazy loading
Error in library(randomForest) : 
  there is no package called ‘randomForest’
Error: unable to load R code in package ‘POPInf’
Execution halted
ERROR: lazy loading failed for package ‘POPInf’
* removing ‘/srv/hornik/tmp/CRAN/POPInf.Rcheck/POPInf’