Trouble with posting slidify to Dropbox

Question

I created a slidify slideshow, but when I am trying to drop in into my dropbox account into Public folder I get a warning:

publish("Slides", host = "dropbox")

Creating slide directory at ~/Dropbox/Public/Slides
Copying files to ~/Dropbox/Public/Slides
[1] FALSE
Warning messages:
1: In file.copy(".", drop_dir, overwrite = F, recursive = TRUE) :
  'recursive' will be ignored as 'to' is not a single existing directory
2: In file.create(to[okay]) :
  cannot create file '~/Dropbox/Public/Slides', reason 'No such file or directory'

I tried to create a hard symbolic link as http://thiagosilva.wordpress.com/2013/02/17/installing-slidify-on-a-windows-machine/ suggests.

But the warning is still there...

Any ideas?

Best Regards!