Hello, I know that this ticket was already closed, but I would like to report again the problem with the function with the biber package reagrding biblatex. The backend=bibtex setting works, but the backen=biber doesn’t. The problem is that since MacTeX 2012 upgrade the biber does not work (it worked before), but since this upgrade of the MacTeX 2012 many other biblatex packages will be biber-only, not supporting the bibtex backend anymore. This needs fix as soon as possible, IMO.
Attached screenshots, and the log error.