[Orgmode] [babel] babel creating corrupt pdf and png

[Graham Smith]

PDFs created by Babel are giving a file corrupt message when trying to
open them and a format not recognised message if I try pngs,

Same files created directly from R are fine.

This is with Ubuntu 10.04 and Org-mode version 6.36trans (release_7.01h.94.g25ac

Example of code I am using is below.

Can anyone suggest what I am doing wrong?

Many thanks,

Graham

#+srcname:boxpip45byyear
#+begin_src R :session bats :file boxpip45byyear.pdf :exports code
boxplot(boxplot(allbats$count[allbats$species=="p45"]~allbats$year[allbats$species=="p45"])
#+end_src

#+results: boxpip45byyear
[[file:boxpip45byyear.pdf]]