Here is the way I fixed my R package version 3.0.2 python version 2.7 platform ipython notebook.
Change Path for R computer-> property -> advanced and system setting -> environment variables
in the user variable field add C:\Program Files\R\R-3.0.2\bin\x64
(my system is windows 64bit) to path
In the system variable field add two new variables
R_HOME c:\program files\r\r-3.0.2
R_USER C:\Users\"your user name"\Anaconda\Lib\site-packages\rpy2