* using log directory 'd:/Rcompile/CRANpkg/lme4.Rcheck'
* checking for file 'lme4/DESCRIPTION' ... OK
* checking if this is a source package ... OK
* checking whether package 'lme4' can be installed ... ERROR
Installation failed.
The installation logfile:
This R is version 2.0.1
    package `lme4' requires R 2.1.0 or later