[O] Cannot fold drawer

I use is: Org-mode version 8.2.4 (8.2.4-dist @ /home/azubi/.emacs.d/elpa/org-20150720/) Can you please explain me what I've done wrong ? Thank you in advance for your help.

[O] Problem with org-mode and minted

Hi all I've recently discovered babel (of org-mode) and I try to learn it. I've discovered a little problem that I cannot solve. Consider the following (almost) minimal example: * First example with language "c" #+BEGIN_SRC c :EXPORT results