[ndnSIM] Error in installing doBy package

[mohammad rousta]

Hi Alex and All
I have a problem in installing "doBy" packages.
Also,my R version is 3.0.1 (2013-05-16) and installed in Ubuntu 13.04.
when I copy this command " install.packages ('doBy') " to terminal, I
encounter this error:

//
> install.packages ('doBy')
Installing package into '/usr/local/lib/R/site-library'
(as 'lib' is unspecified)
--- Please select a CRAN mirror for use in this session ---
trying URL 'http://cran.cs.wwu.edu/src/contrib/doBy_4.5-10.tar.gz'
Content type 'application/x-gzip' length 2566698 bytes (2.4 Mb)
opened URL
==================================================
downloaded 2.4 Mb

* installing *source* package 'doBy' ...
** package 'doBy' successfully unpacked and MD5 sums checked
** R
** data
** inst
** preparing package for lazy loading
Error : package 'lme4' was built before R 3.0.0: please re-install it
ERROR: lazy loading failed for package 'doBy'
* removing '/usr/local/lib/R/site-library/doBy'

The downloaded source packages are in
    '/tmp/Rtmpqk0AAn/downloaded_packages'
Warning message:
In install.packages("doBy") :
  installation of package 'doBy' had non-zero exit status
> q()
 //


I have tried "update.packages" , but this problem is not solved.
Would you please tell me how to  solve that?
Best Regards
Mohammad
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.lists.cs.ucla.edu/pipermail/ndnsim/attachments/20140705/280c34ac/attachment.html>