How to extract content from facebook using R

I want to extract the facebook updates messages using R, but I'm having some trouble. I tried following the tutorials given in http://www.brocktibert.com/blog/2012/01/19/358/ but I am getting the following error

$error$type
 [1] "OAuthException"  
 $error$code
 [1] 190
 

Is there another way to extract messages from facebook?

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